{"product_id":"sea-to-summit-ultra-sil-stuff-sack","title":"Sea to Summit Ultra-Sil Stuff Sack","description":"\u003cmeta charset=\"UTF-8\"\u003e\u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\u003ctitle\u003eUltra-Sil Stuff Sack\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; grid-template-columns: 220px 1fr; border-bottom: 1px solid var(--border); }\n.spec-key { font-size: 12px; font-weight: 500; letter-spacing: 0.05em; text-transform: uppercase; color: var(--muted); padding: 12px 16px 12px 0; }\n.spec-val { font-size: 14px; font-weight: 300; color: var(--body); padding: 12px 0; line-height: 1.5; }\n.spec-category { font-family: 'Barlow Condensed', sans-serif; font-size: 13px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; margin: 24px 0 8px 0; color: var(--muted); }\n.spec-category:first-child { margin-top: 0; }\n@media (max-width: 600px) { .spec-row { grid-template-columns: 1fr; } .spec-key { padding-bottom: 2px; } .spec-val { padding-top: 0; padding-bottom: 12px; } }\nhtml[data-theme=\"dark\"] { --black: #f0f0f0; --white: #0a0a0a; --mid: #1a1a1a; --border: #333; --muted: #888; --body: #ccc; }\nhtml[data-theme=\"dark\"] .spur-panels { background: var(--white); }\nhtml[data-theme=\"dark\"] .key-section { border-color: var(--border); }\nhtml[data-theme=\"dark\"] .spur-header { border-color: var(--border); }\nhtml[data-theme=\"dark\"] .desc-intro { border-color: var(--border); }\nhtml[data-theme=\"dark\"] .spec-row { border-color: var(--border); }\nhtml[data-theme=\"dark\"] .tab-nav label { background: #1a1a1a; color: #888; border-color: #333; }\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\"\u003eUltra-Sil Stuff Sack\u003c\/div\u003e\n\u003cdiv class=\"spur-meta\"\u003eUltra-Sil 30D CORDURA · 6 Sizes · 16–49 g · 2000 mm HH · C0 non-PFAS DWR · Hypalon Pull Tabs\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 Ultra-Sil Stuff Sack is the ultralight but durable solution for organizing gear inside any pack or bag. Built from bluesign-approved Ultra-Sil 30D siliconized CORDURA nylon with a C0 non-PFAS DWR finish, it sheds light rain and slides effortlessly against the wall of a pack, while the reinforced pull handle on the base and tear-proof drawcord with hypalon pull tabs make it easy to operate with cold or wet hands. Available in six sizes from 1.5L for a small ditty bag to 20L for a tent canopy or sleeping bag, they work equally well as internal packing organizers for frequent travelers or as a backup storage bag for shelters, layers, and kitchen kits.\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\"\u003eUltra-Sil 30D CORDURA Fabric\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eBluesign-approved 30-denier Ultra-Sil fabric with CORDURA yarns delivers an exceptional strength-to-weight ratio and proven durability for repeated stuffing.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eC0 Non-PFAS DWR Finish\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eWater-resistant C0 DWR (no PFAS chemicals) sheds light rain and pack condensation without relying on forever-chemical treatments.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003e2000 mm Hydrostatic Head\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eFabric resists 2000 mm of water pressure — more than enough to handle pack condensation, brief rain exposure, and wet grass.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eTear-Proof Drawcord\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eUnique tear-proof drawcord throat with two super-strong Hypalon pull tabs stays strong after thousands of openings and closings.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eCapture Cord Lock\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eEasy-to-operate drawcord with Capture Cord Lock keeps the sack cinched shut without slipping, even when stuffed full.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eReinforced Base Handle\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eReinforced pull handle on the base lets you grab and pull the sack out of a deep pack pocket without snagging other gear.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eDouble-Stitched Stress Points\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eDouble-stitched and reinforced stress points at the seams and drawcord attachment add strength and durability over years of use.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eSlippery Fabric Finish\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eSlippery exterior finish slides easily into tight pack cells and pulls out without snagging on the rest of your gear.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eSix Sizes\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eSix sizes from 1.5L to 20L cover everything from a small ditty bag to a full tent canopy or sleeping bag — pick one size per gear category for full modular packing.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- SPECIFICATIONS PANEL --\u003e\u003cdiv class=\"tab-panel specs-panel\"\u003e\n\u003cdiv class=\"spec-category\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003e1.5 L\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e16 g \/ 0.6 oz · 11.5 × 11.5 × 20.6 cm \/ 5 × 5 × 8 in\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003e3 L\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e20 g \/ 0.7 oz · 13.9 × 13.9 × 23.4 cm \/ 5 × 5 × 9 in\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003e5 L\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e25 g \/ 0.9 oz · 16.5 × 16.5 × 28 cm \/ 6 × 6 × 11 in\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003e8 L\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e32 g \/ 1.1 oz · 19 × 19 × 32.5 cm \/ 7 × 7 × 13 in\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003e13 L\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e44 g \/ 1.6 oz · 21.9 × 21.9 × 37.4 cm \/ 9 × 9 × 15 in\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003e20 L\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e49 g \/ 1.7 oz · 25 × 25 × 43 cm \/ 10 × 10 × 17 in\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-category\"\u003eVariants\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eColorways Available\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e3\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eBest Use\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eInternal Pack Organization · Travel · Tent Storage · Layer Organization\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-category\"\u003eMaterials \u0026amp; Construction\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eFabric\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e100% Nylon (Ultra-Sil 30D siliconized CORDURA, bluesign APPROVED, C0 non-PFAS DWR)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eHydrostatic Head\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e2000 mm (water-resistant — not waterproof)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eDrawcord\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eTear-proof throat + Capture Cord Lock\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003ePull Tabs\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eHypalon (2 super-strong tabs on drawcord and throat)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eBase Handle\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eReinforced pull handle\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eStress Points\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eDouble-stitched, reinforced\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-category\"\u003ePerformance\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eWater Resistance\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eWater-resistant (NOT waterproof — seams not taped, no roll-top closure)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-category\"\u003eWhat's Included\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eIn Box\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e1 × Ultra-Sil Stuff Sack (single size selected)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eWarranty\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eSea to Summit Lifetime Guarantee\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- CARE PANEL --\u003e\u003cdiv class=\"tab-panel care-panel\"\u003e\n\u003cp\u003eHand wash with mild soap and lukewarm water; rinse thoroughly and air dry with the drawcord open before packing away.\u003c\/p\u003e\n\u003cp\u003eDo not machine wash or tumble dry — agitation and heat damage the C0 DWR finish and stress the reinforced stress points.\u003c\/p\u003e\n\u003cp\u003eRe-treat the DWR periodically with a bluesign-approved spray-on restorer to keep water beading off the fabric.\u003c\/p\u003e\n\u003cp\u003eAvoid prolonged direct sunlight or UV exposure when storing; the 30D Ultra-Sil face will degrade faster in direct sunlight.\u003c\/p\u003e\n\u003cp\u003eInspect the drawcord, hypalon pull tabs, and base handle before each trip; if the cord frays or a tab cracks, retire the sack from heavy-load use.\u003c\/p\u003e\n\u003cp\u003eThis sack is water-resistant, not waterproof — for full submersion protection, wet conditions, or paddle sports, use a Sea to Summit Dry Bag or Lightweight Dry Bag instead.\u003c\/p\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":"Blue Atoll \/ 8L","offer_id":52743339213120,"sku":"A4544-33","price":24.95,"currency_code":"USD","in_stock":false},{"title":"Blue Atoll \/ 13L","offer_id":52743339245888,"sku":"A4545-33","price":27.95,"currency_code":"USD","in_stock":true},{"title":"Blue Atoll \/ 20L","offer_id":52743339278656,"sku":"A4546-33","price":29.95,"currency_code":"USD","in_stock":true},{"title":"High Rise \/ 8L","offer_id":52743339311424,"sku":"A4544-11","price":24.95,"currency_code":"USD","in_stock":false},{"title":"High Rise \/ 13L","offer_id":52743339344192,"sku":"A4545-11","price":27.95,"currency_code":"USD","in_stock":false},{"title":"High Rise \/ 20L","offer_id":52743339376960,"sku":"A4546-11","price":29.95,"currency_code":"USD","in_stock":true},{"title":"Zinnia \/ 8L","offer_id":52743339409728,"sku":"A4544-51","price":24.95,"currency_code":"USD","in_stock":true},{"title":"Zinnia \/ 13L","offer_id":52743339442496,"sku":"A4545-51","price":27.95,"currency_code":"USD","in_stock":true},{"title":"Zinnia \/ 20L","offer_id":52743339475264,"sku":"A4546-51","price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7487\/5549\/files\/A4544-33_abbb7197-0b0e-4d00-9293-40e5a8d08e9e.jpg?v=1783364512","url":"https:\/\/spokex.com\/products\/sea-to-summit-ultra-sil-stuff-sack","provider":"SX Collective","version":"1.0","type":"link"}