{"product_id":"sea-to-summit-basecamp-down-sleeping-bag","title":"Sea to Summit Basecamp Down Sleeping Bag","description":"\u003cmeta charset=\"UTF-8\"\u003e\u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\u003ctitle\u003eBasecamp Down Sleeping Bag\u003c\/title\u003e\u003cstyle\u003e\n@import url('https:\/\/fonts.googleapis.com\/css2?family=Barlow+Condensed:wght@400;600;700;800\u0026family=Barlow:wght@300;400;500;600\u0026display=swap');\n:root { --black: #0a0a0a; --white: #ffffff; --mid: #f5f5f5; --border: #e8e8e8; --muted: #999; --body: #222; }\n* { box-sizing: border-box; margin: 0; padding: 0; }\n.spur-wrap { font-family: 'Barlow', sans-serif; background: var(--white); color: var(--black); max-width: 1100px; margin: 0 auto; padding: 48px 24px; }\n.spur-header { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 48px; border-bottom: 1px solid var(--border); padding-bottom: 24px; flex-wrap: wrap; gap: 12px; }\n.spur-title { font-family: 'Barlow Condensed', sans-serif; font-size: clamp(28px, 5vw, 48px); font-weight: 800; letter-spacing: -0.02em; line-height: 1; text-transform: uppercase; }\n.spur-meta { font-size: 12px; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }\n.tab-radio { display: none; }\n.tab-nav { display: flex; gap: 4px; margin-bottom: 32px; flex-wrap: wrap; }\n.tab-nav label { font-family: 'Barlow Condensed', sans-serif; font-size: 14px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; padding: 10px 24px; background: var(--mid); color: var(--muted); border: 1px solid var(--border); cursor: pointer; transition: all 0.15s; border-radius: 2px; display: inline-block; user-select: none; }\n.tab-nav label:hover { color: var(--black); border-color: #aaa; }\n.spur-panels .tab-panel { display: none; }\n#tab-desc:checked ~ .tab-nav label[for=\"tab-desc\"],\n#tab-key:checked ~ .tab-nav label[for=\"tab-key\"],\n#tab-specs:checked ~ .tab-nav label[for=\"tab-specs\"],\n#tab-care:checked ~ .tab-nav label[for=\"tab-care\"] { background: var(--black); color: var(--white); border-color: var(--black); }\n#tab-desc:checked ~ .spur-panels .desc-panel { display: block; }\n#tab-key:checked ~ .spur-panels .key-panel { display: block; }\n#tab-specs:checked ~ .spur-panels .specs-panel { display: block; }\n#tab-care:checked ~ .spur-panels .care-panel { display: block; }\n.spur-panel p { font-size: 14px; font-weight: 300; line-height: 1.7; color: var(--body); margin-bottom: 16px; }\n.desc-intro { font-size: 16px; font-weight: 400; line-height: 1.65; color: var(--body); margin-bottom: 28px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }\n.key-section { border-bottom: 1px solid var(--border); padding: 16px 0; }\n.key-section:last-child { border-bottom: none; }\n.key-title { font-family: 'Barlow Condensed', sans-serif; font-size: 13px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 6px; }\n.key-desc { font-size: 14px; font-weight: 300; color: var(--body); line-height: 1.5; }\n.spec-row { display: grid; 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grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-top: 8px; }\n.benefit-card { border: 1px solid var(--border); border-radius: 4px; padding: 16px 14px; text-align: center; }\n.benefit-name { font-family: 'Barlow Condensed', sans-serif; font-size: 13px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 6px; }\n.benefit-desc { font-size: 12px; font-weight: 300; color: #555; line-height: 1.45; }\n.tech-badges { display: flex; flex-wrap: wrap; gap: 12px; margin: 16px 0 24px 0; }\n.tech-badge { border: 1px solid var(--border); border-radius: 20px; padding: 8px 16px; font-size: 11px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--black); background: var(--mid); }\n@media (max-width: 600px) { .spec-row { grid-template-columns: 1fr; } .spec-key { padding-bottom: 2px; } .spec-val { padding-top: 0; padding-bottom: 12px; } .spec-table { font-size: 11px; } .spec-table th, .spec-table td { padding: 8px 10px; } }\n\u003c\/style\u003e\u003cscript src=\"chrome-extension:\/\/idnnbdplmphpflfnlkomgpfbpcgelopg\/inpage.js\" id=\"xverse-wallet-provider\" data-is-priority=\"true\"\u003e\u003c\/script\u003e\u003cdiv class=\"spur-wrap\"\u003e\n\u003cdiv class=\"spur-header\"\u003e\n\u003cdiv class=\"spur-title\"\u003eBasecamp Down Sleeping Bag\u003c\/div\u003e\n\u003cdiv class=\"spur-meta\"\u003eSleep System · Comfort · Car Camping\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cinput type=\"radio\" name=\"spur-tabs\" id=\"tab-desc\" class=\"tab-radio\" checked\u003e\u003cinput type=\"radio\" name=\"spur-tabs\" id=\"tab-key\" class=\"tab-radio\"\u003e\u003cinput type=\"radio\" name=\"spur-tabs\" id=\"tab-specs\" class=\"tab-radio\"\u003e\u003cinput type=\"radio\" name=\"spur-tabs\" id=\"tab-care\" class=\"tab-radio\"\u003e\u003cdiv class=\"tab-nav\"\u003e\n\u003clabel for=\"tab-desc\"\u003eDescription\u003c\/label\u003e\u003clabel for=\"tab-key\"\u003eKey Features\u003c\/label\u003e\u003clabel for=\"tab-specs\"\u003eSpecifications\u003c\/label\u003e\u003clabel for=\"tab-care\"\u003eCare\u003c\/label\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spur-panels\"\u003e\n\u003c!-- DESCRIPTION PANEL --\u003e\u003cdiv class=\"tab-panel desc-panel\"\u003e\u003cp class=\"desc-intro\"\u003eThe Basecamp takes vehicle-based camping to the next level. This version of the Free-Flow Zip system allows you to open either side of the bag or the footbox for the greatest ventilation possible. With a relaxed semi-rectangular fit, for even more space you can zip two Basecamp sleeping bags together as a double, or unzip the upper section for use as a quilt. RDS-certified, 650+ fillpower duck down with a non-PFAS Ultra-Dry Down treatment, a box baffle construction with vertical chest baffles in the torso for reduced down movement, and a hood large enough to accommodate your favourite pillow from home. If you're looking for one of the best, most comfortable vehicle-based sleeping bags available, look no further.\u003c\/p\u003e\u003c\/div\u003e\n\u003c!-- KEY FEATURES PANEL --\u003e\u003cdiv class=\"tab-panel key-panel\"\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eCar Camping Comfort\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eSemi-rectangular fit + oversized hood = more room to move, more comfort than backpacking mummy bags.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eZip-Together\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eTwo Basecamp bags zip together as a double. Left\/right zippers also pair with most STS Women's\/Unisex bags.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eFree-Flow+ Zip System\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eUpgraded version with zipper ploughs (covers over teeth) — prevents cold infiltration + zipper snags.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003ePillow-Friendly Hood\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eOversized hood with adjustment cords has space for your favourite pillow from home.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eMulti-Mode\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eOpen both sides for max ventilation. Open footbox only. Use as quilt by removing upper section.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eSustainably Sourced\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eRDS-certified duck down with non-PFAS Ultra-Dry Down treatment.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003e650+ Fillpower RDS Duck Down (NEW — FIRST DUCK DOWN)\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eThe Basecamp uses \u003cstrong\u003e650+ fillpower duck down\u003c\/strong\u003e — the first STS sleeping bag I've built that uses duck rather than goose. Duck down is slightly less lofty per ounce than goose down (goose typically achieves higher fillpower for the same cluster size), but \u003cstrong\u003educk down is more affordable\u003c\/strong\u003e — explains the lower price point ($414 vs $449-$934 for the other STS bags). RDS-certified for ethical sourcing, treated with non-PFAS Ultra-Dry Down.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eFree-Flow+ Zip System (NEW — UPGRADED VARIANT)\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eThe Basecamp uses an upgraded \u003cstrong\u003eFree-Flow+ Zip System\u003c\/strong\u003e with \u003cstrong\u003ezipper ploughs\u003c\/strong\u003e — fabric flaps that cover the zipper teeth when closed. Zipper ploughs:\n- Prevent cold air infiltration through the zipper teeth\n- Prevent fabric from snagging in the zipper\n- Add weather resistance in the zipper area\n- Make the zipper quieter (less metal-on-metal clicking)\n\nThe \"plus\" version is an upgrade over the standard Free-Flow Zip System used in the Ascent and Alpine.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eTwo Full-Length Side Zippers + Footbox Zip (NEW — UNIQUE)\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eThe Basecamp has \u003cstrong\u003etwo full-length YKK #5 side zippers\u003c\/strong\u003e — one on each side of the bag, each with two sliders. Plus a YKK #5 footbox zip. This combination enables:\n- \u003cstrong\u003eOpen either side\u003c\/strong\u003e for ventilation (left only, right only, or both)\n- \u003cstrong\u003eOpen footbox\u003c\/strong\u003e only for foot ventilation\n- \u003cstrong\u003eOpen both sides + footbox\u003c\/strong\u003e = flat quilt mode\n- \u003cstrong\u003eZip two Basecamp bags together\u003c\/strong\u003e as a double-wide sleeping bag\n- \u003cstrong\u003eLeft\/right zippers pair with STS Women's\/Unisex bags\u003c\/strong\u003e for mixed pairs (e.g., Ascent Women's left + Basecamp right)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eRelaxed Semi-Rectangular Fit (NEW — DIFFERENT FROM MUMMY)\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eThe Basecamp uses a \u003cstrong\u003erelaxed semi-rectangular fit\u003c\/strong\u003e — wider than a mummy bag but narrower than a full rectangular bag. Trades packability for comfort and room to move. Designed for car camping where pack size doesn't matter, but the user wants more comfort than a mummy provides.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eOversized Pillow-Friendly Hood\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eThe hood is intentionally \u003cstrong\u003eoversized\u003c\/strong\u003e — has space for your favourite pillow from home (e.g., a regular bed pillow) inside the hood, not just an inflatable camping pillow. A unique comfort feature for car campers who don't need to minimize pack size.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eBox Baffle Construction\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eBox baffles throughout with \u003cstrong\u003evertical chest baffles in the torso\u003c\/strong\u003e — 3D fabric walls that prevent down from shifting. Vertical chest baffles specifically minimize vertical down shift in the critical chest area where body weight can compress down.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eLightweight 20D Recycled Polyester Shell\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eThe shell is \u003cstrong\u003elightweight 20D recycled polyester\u003c\/strong\u003e with non-PFAS DWR finish. Note: this is \u003cstrong\u003erecycled polyester\u003c\/strong\u003e, not the recycled nylon used in the Ascent and Alpine. Recycled polyester is slightly heavier than recycled nylon at the same denier but more affordable.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eUse Cases (Car Camping Specific)\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eNot for Backpacking\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003ePer STS FAQ: \"The Basecamp is too heavy and too bulky for anything more than a hike-in to a campsite. For a comfort-oriented performance backpacking bag, check out the Ascent\/Women's Ascent.\"\n\n\u003cstrong\u003eExplicit positioning:\u003c\/strong\u003e Basecamp is for car camping (drive to campsite) and short hike-ins only. NOT for backpackers who count every gram.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eZip-Together Couples\/Family Camping (NEW — KEY FEATURE)\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eThe Basecamp's left\/right zippers allow it to be \u003cstrong\u003ezipped to another Basecamp\u003c\/strong\u003e to form a double-wide sleeping bag. Per STS FAQ: \"Yes! The left \u0026amp; right zippers can be zipped to another Basecamp or to most STS Women's and Unisex sleeping bags.\" \n\nThis means:\n- \u003cstrong\u003eCouples camping:\u003c\/strong\u003e Two Basecamps zip together for shared bed\n- \u003cstrong\u003eParent-child camping:\u003c\/strong\u003e Adult Basecamp + kid's sleeping bag (if STS makes one with compatible zipper)\n- \u003cstrong\u003eDifferent temp ratings:\u003c\/strong\u003e Mix and match (e.g., 15°F Basecamp + 30°F Ascent Women's for partners with different cold tolerances)\n\n\u003cstrong\u003eFor SpokeX:\u003c\/strong\u003e worth featuring prominently — couples\/family camping is a major market segment.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eQuilt Mode (NEW)\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003ePer STS description: \"for even more space you can zip two Basecamp sleeping bags together as a double, or unzip the upper section for use as a quilt.\" The Basecamp can be \u003cstrong\u003eunzipped to function as a quilt\u003c\/strong\u003e for warm nights — versatile multi-mode usage.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eTemperature Rating\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003e15°F (Single Temperature Rating)\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eThe Basecamp comes in \u003cstrong\u003eone temperature rating\u003c\/strong\u003e (15°F \/ ISO Lower 16°F \/ Women's ISO Comfort 25°F) — designed for spring, summer, fall, and mild winter camping. For colder conditions, STS recommends the Ascent Women's (15°F) or Alpine Down (-20°F).\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- SPECIFICATIONS PANEL --\u003e\u003cdiv class=\"tab-panel specs-panel\"\u003e\n\u003cp class=\"spec-category\"\u003eTemperature Rating\u003c\/p\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eISO Lower Limit\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e16°F \/ -9°C\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eISO Comfort (Women)\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e25°F \/ -4°C\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eClimate Category\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eComfort \/ Car Camping\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"spec-category\"\u003eDimensions \u0026amp; Weight (by size)\u003c\/p\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMeasurement\u003c\/th\u003e\n\u003cth\u003eRegular\u003c\/th\u003e\n\u003cth\u003eLong\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e64.3 oz \/ 1822 g\u003c\/td\u003e\n\u003ctd\u003e71.7 oz \/ 2033 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFill Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e26.46 oz \/ 750 g\u003c\/td\u003e\n\u003ctd\u003e30.34 oz \/ 860 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompressed Volume\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.9 L\u003c\/td\u003e\n\u003ctd\u003e15 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRecommended User Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e72.05 in \/ 183 cm\u003c\/td\u003e\n\u003ctd\u003e77.95 in \/ 198 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"spec-category\"\u003eMaterials \u0026amp; Construction\u003c\/p\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eShell\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e100% Recycled Polyester (Lightweight 20D, non-PFAS DWR finish)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eLining\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e100% Recycled Polyester (20D)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eDown Fill\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eRDS-certified, 650+ fillpower \u003cstrong\u003educk down\u003c\/strong\u003e (90\/10 ratio) with non-PFC Ultra-Dry Down treatment\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eStuff Sack\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e100% Nylon (included, excluding trims)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eZippers\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e2× full-length YKK #5 side zippers (2 sliders each) + YKK #5 footbox zip\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eZipper Ploughs\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eYes (Free-Flow+ Zip System — fabric covers over zipper teeth)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eBaffle Construction\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eBox baffles throughout + vertical chest baffles in torso\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eFit\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eRelaxed semi-rectangular (wider than mummy, narrower than rectangular)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eZip Compatibility\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eLeft\/right zippers pair with another Basecamp OR most STS Women's\/Unisex sleeping bags\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"spec-category\"\u003ePerformance (STS scales)\u003c\/p\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eWeight Class\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eMidweight (heaviest STS bag — designed for car camping, not packability)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\u003cdiv class=\"spec-val\"\u003eMidweight\u003c\/div\u003e\u003c\/div\u003e\n\u003cp class=\"spec-category\"\u003eCompatibility\u003c\/p\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eUse Cases\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eCar camping, drive-in campsites, short hike-ins, RV camping, cabin trips, festival camping (with car), basecamp camping\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eNot For\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eBackpacking, multi-day hikes, mountaineering (too heavy + bulky per STS FAQ)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eSleeping Pad Pairing\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003ePair with Comfort Deluxe SI pad ($265) for car camping comfort system\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eSleeping Bag Liner Pairing\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eCompatible with STS Silk Blend, Reactor Lightweight, Reactor Midweight liners\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"spec-category\"\u003eProfile\u003c\/p\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eBrand\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eSea to Summit (Australian outdoor gear, founded 1994)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eCategory\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eSleeping Bag \/ Down Sleeping Bag \/ Car Camping Sleeping Bag\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eActivity\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eCar camping, drive-in campsites, RV camping, festival camping (with car), cabin trips\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eSeason\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eSpring, summer, fall, mild winter\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- CARE PANEL --\u003e\u003cdiv class=\"tab-panel care-panel\"\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eCleaning (Down Bag Specific)\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eHand wash or machine wash (front-loading washer only, no top-loaders with agitators) in cold water with a \u003cstrong\u003edown-specific technical wash\u003c\/strong\u003e like Nikwax Down Wash or Grangers Down Wash. Regular detergent strips natural oils from down and degrades the Ultra-Dry Down treatment. Wash infrequently — most down bags only need washing once every 5-10 trips. Spot clean between washes. \u003cstrong\u003eDo not dry clean\u003c\/strong\u003e — solvents strip the down treatment and damage the shell DWR.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eDrying (Down Bag Specific)\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003e\n\u003cstrong\u003eTumble dry low\u003c\/strong\u003e with \u003cstrong\u003e3-4 clean tennis balls or dryer balls\u003c\/strong\u003e — the balls break up down clumps as the bag dries, restoring loft. Drying takes 2-4 hours minimum. Ensure the bag is \u003cstrong\u003ecompletely dry\u003c\/strong\u003e before storage — any retained moisture causes mildew and down clumping. Can also air dry in sunlight on a dry day, but fluff by hand periodically.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eStorage (Down Bag Specific)\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003e\n\u003cstrong\u003eStore UNCOMPRESSED in a large cotton storage sack\u003c\/strong\u003e — not the included compression stuff sack. Long-term compression damages down loft permanently. STS typically includes a large cotton storage sack with their down bags. Store in a cool, dry place away from direct sunlight.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eUltra-Dry Down Treatment Care\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eThe Ultra-Dry Down treatment is durable but wears off with years of use and washing. Refresh with Nikwax Down Proof or similar down-specific water-resistant treatments after washing. Apply to clean, dry bag and tumble dry low with tennis balls to activate.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eShell DWR Refresh\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eThe shell's non-PFAS DWR will wear off with use. Refresh with a PFC-free spray-on DWR (Nikwax TX.Direct Spray-On, Grangers Performance Repel, Gear Aid ReviveX). Apply to clean bag, let cure for 24 hours before use.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eYKK Zipper Care\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eAll zippers (2× full-length side zips, footbox zip) are YKK #5 — industry-leading brand. After exposure to sand, salt, or dirt, rinse with fresh water. If zippers stick, apply beeswax or a graphite pencil tip to the teeth — avoid silicone-based lubricants which attract dirt. Periodically check zipper ploughs (fabric covers) for proper alignment.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eBox Baffle Maintenance\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eBox baffles can develop cold spots over years of use as down shifts between chambers. To re-distribute down: lay the bag flat, massage the chambers to push down back into even distribution. Do this periodically for optimal warmth.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eZip-Together Care\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eWhen zipping two Basecamp bags together (or a Basecamp with another STS bag), ensure both zippers are aligned correctly before zipping. Mismatched zipper alignment can damage the teeth. Practice zipping together at home before relying on it in the field. Periodically inspect the zipper alignment for any bent teeth.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eLong-Term Loft Maintenance\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eDown bags lose some loft over years of use. To refresh loft: tumble dry low with tennis balls for 30 minutes every 6-12 months. Replace bags showing significant loft loss.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eRepair\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eSmall shell tears: STS repair patches or any silicone\/PU repair tape. Large tears, baffle failures, or zipper failures: contact STS warranty service.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eCar Camping Tip\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eThe Basecamp's semi-rectangular fit makes it ideal for car camping comfort — much roomier than a mummy bag. The zip-together feature is great for couples: buy two Basecamps for a shared sleeping surface (still separate comfort zones). For best warmth, pair with the Comfort Deluxe SI sleeping pad ($265) which is similarly comfort-oriented. Use the Free-Flow+ Zip System to vent in warm weather — open both side zippers and the footbox for maximum airflow, or unzip the upper entirely to use as a quilt.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cdiv id=\"torrent-scanner-popup\" style=\"display: none;\"\u003e\u003c\/div\u003e","brand":"Sea to Summit","offers":[{"title":"Bombay Brown \/ -9C|15F Regular","offer_id":52743296778560,"sku":"S1141","price":414.0,"currency_code":"USD","in_stock":true},{"title":"Bombay Brown \/ -9C|15F Long","offer_id":52743296811328,"sku":"S1142","price":444.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7487\/5549\/files\/S1141_8e963c62-001b-42cd-b41d-23a30bb3c4a6.jpg?v=1783364224","url":"https:\/\/spokex.com\/products\/sea-to-summit-basecamp-down-sleeping-bag","provider":"SX Collective","version":"1.0","type":"link"}