{"product_id":"the-north-face-summit-series-vectiv-sky-2-trail-shoe","title":"The North Face Summit Series VECTIV Sky 2 Trail Shoe","description":"\u003cbody\u003e\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n\u003ctitle\u003eSummit Series VECTIV™ Sky 2 Shoes\u003c\/title\u003e\n\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; 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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: 200px 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; } }\n\u003c\/style\u003e\n\u003cscript src=\"chrome-extension:\/\/idnnbdplmphpflfnlkomgpfbpcgelopg\/inpage.js\" id=\"xverse-wallet-provider\" data-is-priority=\"true\"\u003e\u003c\/script\u003e\n\n\u003cdiv class=\"spur-wrap\"\u003e\n\u003cdiv class=\"spur-header\"\u003e\n\u003cdiv class=\"spur-title\"\u003eSummit Series VECTIV™ Sky 2 Shoes\u003c\/div\u003e\n\u003cdiv class=\"spur-meta\"\u003eFootwear · Ultra-Light Trail Racing\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cinput type=\"radio\" name=\"spur-tabs\" id=\"tab-desc\" class=\"tab-radio\" checked\u003e\n\u003cinput type=\"radio\" name=\"spur-tabs\" id=\"tab-key\" class=\"tab-radio\"\u003e\n\u003cinput type=\"radio\" name=\"spur-tabs\" id=\"tab-specs\" class=\"tab-radio\"\u003e\n\u003cinput type=\"radio\" name=\"spur-tabs\" id=\"tab-care\" class=\"tab-radio\"\u003e\n\n\u003cdiv class=\"tab-nav\"\u003e\n\u003clabel for=\"tab-desc\"\u003eDescription\u003c\/label\u003e\n\u003clabel for=\"tab-key\"\u003eKey Features\u003c\/label\u003e\n\u003clabel for=\"tab-specs\"\u003eSpecifications\u003c\/label\u003e\n\u003clabel for=\"tab-care\"\u003eCare\u003c\/label\u003e\n\u003c\/div\u003e\n\n\u003cscript\u003e\n(function(){\n  var names = ['desc','key','specs','care'];\n  function show(n){\n    names.forEach(function(t){\n      var panel = document.querySelector('.' + t + '-panel');\n      if(panel) panel.style.setProperty('display', (t === n) ? 'block' : 'none', 'important');\n    });\n  }\n  names.forEach(function(t){\n    var input = document.getElementById('tab-' + t);\n    if(input) input.addEventListener('change', function(){ show(t); });\n    var label = document.querySelector('label[for=\"tab-' + t + '\"]');\n    if(label) label.addEventListener('click', function(){\n      show(t);\n      var inp = document.getElementById('tab-' + t);\n      if(inp) inp.checked = true;\n    });\n  });\n  show('desc');\n})();\n\u003c\/script\u003e\n\n\u003cdiv class=\"spur-panels\"\u003e\n\u003c!-- DESCRIPTION PANEL --\u003e\n\u003cdiv class=\"tab-panel desc-panel\"\u003e\n\u003cp class=\"desc-intro\"\u003eLighter. Faster. Further. The Summit Series VECTIV™ Sky 2 are the lightest trail-racing shoes in the VECTIV™ line. They have full-length VECTIV™ 3.0 carbon-fiber propulsion plates along with proprietary DREAM nitrogen-TPU midsoles and SURFACE CTRL™ high-traction outsoles for top-level performance on any terrain whether you're training or racing.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c!-- KEY FEATURES PANEL --\u003e\n\u003cdiv class=\"tab-panel key-panel\"\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eVECTIV™ 3.0 Carbon-Fiber Propulsion Plate\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eFull-length VECTIV 3.0 midsole technology features a 3D carbon-fiber plate with a forked forefoot and heel — the fork geometry is race-tuned for forward propulsion AND lateral support, delivering enhanced stability on varied trail terrain; the same plate tech used in TNF's podium-level racing shoes\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eLightest Shoes in the VECTIV™ Line\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eAt 8.4 oz \/ 238 g (½ pair), the Sky 2 is the lightest trail-racing shoe in the entire VECTIV line — tuned for race day where every gram affects pace over dozens of miles; the upper, midsole, and outsole are all engineered to minimize weight without sacrificing the propulsion or stability the platform is known for\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eDREAM Nitrogen-TPU Midsole\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eFull-length ultralight DREAM nitrogen-TPU midsole — supercritical-foam technology delivers high energy return, reduced weight, and increased longevity compared to standard EVA midsole foams; the nitrogen-infused TPU maintains its rebound characteristics longer over the life of the shoe than traditional EVA, which goes \"dead\" after 300-500 miles\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eRockered Midsole Geometry\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eRockered midsole geometry engineered to create long-lasting forward propulsion — the rockered shape rolls the foot from heel-strike to toe-off efficiently, reducing calf fatigue over the long stride counts of ultra-distance efforts\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003e25 mm Heel Stack \/ 6 mm Offset\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003e25 mm heel stack height (midsole + outsole) with a 6 mm heel\/toe offset — lower stack than max-stack training shoes (which often run 35-40 mm) for better ground feel and proprioception on technical terrain; the 6 mm offset is more efficient than 8-12 mm options for athletes with a midfoot-to-forefoot strike pattern\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eLightweight Seamless Upper\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eLightweight, seamless upper with mapped venting zones is both secure and highly breathable — strategic venting at the highest-heat zones (toebox, midfoot) reduces moisture buildup during high-output efforts; the seamless construction eliminates sewn-seam pressure points that cause discomfort over ultra-distance runs\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eImproved Heel Fit vs. Sky 1\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eOffers a better heel fit than the Summit VECTIV Sky — the heel collar and Achilles notch are refined from the previous generation to lock the heel in place during technical terrain without pressure points or slippage\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eIntegrated Tongue Wings\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eIntegrated tongue wings increase heel and midfoot lockdown for a precise fit on technical terrain — the wings extend from the tongue to bridge the gap between the upper and the lacing, eliminating the lateral foot movement that causes blisters on long descents and sidehill sections\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eSURFACE CTRL™ Rubber Outsole\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eDurable SURFACE CTRL™ rubber outsole optimized for weight and versatility, made with 10% rubber from smallholder farmers committed to agroforestry principles and regenerative agricultural practices — the compound balances grip, longevity, and minimal weight for racing\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003e5 mm Lugs for Technical Terrain\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003e5 mm lugs are designed for racing on technical terrain — deeper than the 3.5 mm lugs on the VECTIV Pro 3, the Sky 2's lugs bite into loose rock, roots, and softer trail surfaces while still allowing efficient stride turnover at race pace; the lug pattern is tuned for traction during the lateral braking forces of steep descents\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eUnisex Sizing\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eUnisex sizing — refer to the size guide for men's\/women's conversions; one product fits both, simplifying team and inventory decisions for athletes and stores\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c!-- SPECIFICATIONS PANEL --\u003e\n\u003cdiv class=\"tab-panel specs-panel\"\u003e\n\u003cp class=\"spec-category\"\u003eUse\u003c\/p\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eType\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eUltra-Light Trail Racing Shoes\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\"\u003eUltra-Distance Trail Racing · Skyrunning · Technical Mountain Terrain · Mountain Marathons\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\"\u003eRace-precision (improved heel lockdown over Sky 1)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eGender\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eUnisex\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"spec-category\"\u003eSizing \u0026amp; Dimensions\u003c\/p\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e3.5–13, 14 (refer to size guide for men's\/women's conversions)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eApprox Weight (½ pair)\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e8.4 oz (238 g) — lightest shoe in the VECTIV line\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eHeel Stack Height\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e25 mm (midsole + outsole)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eHeel\/Toe Offset\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e6 mm\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"spec-category\"\u003eSole Unit\u003c\/p\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eMidsole\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eFull-length DREAM nitrogen-TPU foam\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003ePlate System\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eVECTIV™ 3.0 full-length 3D carbon-fiber plate with forked forefoot and heel (race-tuned for propulsion + lateral support)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eRocker Geometry\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eRockered midsole geometry for long-lasting forward propulsion\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eOutsole Compound\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eSURFACE CTRL™ rubber (10% from smallholder farmers, agroforestry-sourced)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eLug Depth\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e5 mm (designed for racing on technical terrain)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"spec-category\"\u003eUpper\u003c\/p\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eUpper Construction\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eLightweight, seamless upper with mapped venting zones\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eHeel Fit\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eImproved over Summit VECTIV Sky (refined collar and Achilles notch)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eInternal Support\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eIntegrated tongue wings for heel and midfoot lockdown\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"spec-category\"\u003eTechnology\u003c\/p\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eVECTIV™ 3.0\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eThe North Face carbon-plate propulsion technology — full-length 3D plate with forked forefoot and heel\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eDREAM Foam\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eNitrogen-TPU supercritical-foam midsole technology for high energy return, reduced weight, increased longevity\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eSURFACE CTRL™\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eThe North Face outsole rubber compound optimized for weight, versatility, and traction on varied trail terrain\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"spec-category\"\u003eSustainability\u003c\/p\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eRubber Sourcing\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e10% of outsole rubber from smallholder farmers practicing agroforestry and regenerative agriculture\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c!-- CARE PANEL --\u003e\n\u003cdiv class=\"tab-panel care-panel\"\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eCleaning After Trail Runs\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eRemove loose dirt from the upper and outsole with a soft brush after each run. For mud, rinse under cold running water while brushing the 5 mm lugs — focus on the SURFACE CTRL™ outsole to prevent compacted dirt from reducing traction. \u003cstrong\u003eDo not machine wash\u003c\/strong\u003e — the agitation and spin cycle damage the VECTIV™ 3.0 carbon-fiber plate, the DREAM nitrogen-TPU midsole, and the seamless upper construction. For the lightest shoe in the VECTIV line, the carbon plate's structural integrity is critical to performance.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eDrying\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eAir dry at room temperature away from direct heat or sunlight. Remove the insole and loosen the laces to allow airflow through the mapped venting zones in the upper. \u003cstrong\u003eDo not tumble dry or place near a radiator\u003c\/strong\u003e — heat above 40°C\/104°F degrades the DREAM nitrogen-TPU midsole (reduces rebound), softens the carbon-fiber plate bonding, and damages the SURFACE CTRL™ rubber outsole. \u003cstrong\u003eDo not leave in a hot car\u003c\/strong\u003e for the same reasons.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eStorage\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eStore in a \u003cstrong\u003ecool, dry\u003c\/strong\u003e place away from direct sunlight. Loosely lace the shoes or stuff with paper to maintain the shape of the seamless upper and the integrated tongue wings. \u003cstrong\u003eDo not store compressed in a stuff sack\u003c\/strong\u003e for long periods — the DREAM nitrogen-TPU midsole can take a temporary compression set if left packed tight for weeks at a time. The Sky 2's low 8.4 oz weight is achieved partly through the minimal midsole stack (25 mm); protect the midsole geometry by not over-compressing.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eOutsole Lug Care\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eClear mud and debris from the 5 mm lugs with a stiff brush or old toothbrush after each run — debris in the lugs reduces grip and accelerates wear in unintended patterns. The 5 mm lugs are deeper than the VECTIV Pro 3's 3.5 mm lugs, so they hold onto mud more aggressively; a brush with stiffer bristles is worth keeping in your trail-running kit. \u003cstrong\u003eInspect the lugs periodically\u003c\/strong\u003e for wear patterns; rotate left\/right to extend overall life if heel wear is uneven.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eVECTIV™ 3.0 Carbon-Plate Care\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eThe VECTIV™ 3.0 full-length 3D carbon-fiber plate with forked forefoot and heel is the structural heart of the shoe — the fork geometry delivers the race-tuned propulsion AND lateral support that distinguishes the Sky 2 from non-plated competitors. \u003cstrong\u003eAvoid prolonged heat exposure\u003c\/strong\u003e (radiators, hot cars, saunas) — heat above 60°C\/140°F can weaken the plate\/midsole bond. If the plate starts to feel loose or makes a clicking sound against the midsole, the midsole foam has worn through and the plate is no longer supported — the shoe is at end-of-life.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eDREAM Midsole Foam Care\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eDREAM nitrogen-TPU foam is more durable than standard EVA but it's still susceptible to compression set over many hundreds of miles. \u003cstrong\u003eTrack your mileage\u003c\/strong\u003e — at 8.4 oz \/ 238 g per half-pair, the Sky 2 is built for race day, not daily training. Most athletes rotate a training shoe with a race shoe; expect 200-400 miles of meaningful race-day performance before the foam's rebound characteristics degrade enough to warrant replacement. If the shoes feel \"flat\" or you've noticed increased leg fatigue at distances that used to feel manageable, the foam is likely worn out.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eMapped Venting Zones Care\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eThe lightweight seamless upper has mapped venting zones at the highest-heat areas (toebox, midfoot) — these vents are designed to release moisture vapor during high-output efforts. \u003cstrong\u003eRinse with fresh water after running on salt or chlorinated surfaces\u003c\/strong\u003e — salt crystals and chlorine dry out the mesh fibers and reduce the venting effectiveness. If the upper feels like it's holding more heat than it used to, the vents may be clogged with body-oil residue; hand-wash with a tiny amount of mild technical cleaner, then rinse thoroughly.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eIntegrated Tongue Wings\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eThe integrated tongue wings extend from the tongue to bridge the gap between the upper and the lacing — this is the critical feature for heel and midfoot lockdown on technical terrain. \u003cstrong\u003eDon't overtighten the laces\u003c\/strong\u003e at the top eyelets — this compresses the tongue wings against the ankle tendons and can cause discomfort on long descents. If you feel the wings digging in, loosen the top eyelet and re-lace using the runner's loop technique.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eRace-Day Prep\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eFor race day, lace the shoes a notch tighter than training runs to lock the foot in place during high-intensity efforts. \u003cstrong\u003eTest the lacing system on a shake-out run the week before\u003c\/strong\u003e — never race in untested footwear. The Sky 2 is built for racing on technical terrain; if you're racing on smooth, hard-packed surfaces, the VECTIV Pro 3 (with 3.5 mm lugs) is a better match. Apply body glide or trail-running-specific anti-chafe balm to the heel collar, the tongue wings, and the inside of the toebox before long ultras.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eReplacement Indicators\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eReplace the Sky 2 when any of these are true: (1) the midsole foam feels flat or \"dead\" compared to a new pair, (2) the SURFACE CTRL™ outsole 5 mm lugs are worn smooth in the high-impact zones (heel, lateral forefoot), (3) the seamless upper has visible abrasion, (4) the VECTIV™ 3.0 carbon-fiber plate starts to flex differently than when new or makes a clicking sound against the midsole, (5) you can feel rocks and roots through the midsole that you couldn't feel before. At 8.4 oz, this shoe is purpose-built for race day — don't expect daily training mileage from it.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-section\"\u003e\n\u003cdiv class=\"key-title\"\u003eStorage (Off-Season)\u003c\/div\u003e\n\u003cdiv class=\"key-desc\"\u003eFor off-season storage, clean the shoes thoroughly, remove the insoles, and store in a \u003cstrong\u003ecool, dry\u003c\/strong\u003e place away from direct sunlight. Stuff with paper or use a shoe tree to maintain the shape of the seamless upper and the integrated tongue wings. \u003cstrong\u003eAvoid plastic bags or airtight containers\u003c\/strong\u003e — the DREAM nitrogen-TPU midsole can off-gas slightly when new, and trapping that moisture in an airtight container can promote mildew on the insole and odor in the upper.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\n\u003cdiv id=\"torrent-scanner-popup\" style=\"display: none;\"\u003e\u003c\/div\u003e\n\u003c\/body\u003e","brand":"The North Face","offers":[{"title":"Lava Red\/Calacatta \/ M 5.5\/W 7","offer_id":52080663396672,"sku":"NF0A8AEML2I1055000","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Lava Red\/Calacatta \/ M 6\/W 7.5","offer_id":52080663429440,"sku":"NF0A8AEML2I1060000","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Lava Red\/Calacatta \/ M 6.5\/W 8","offer_id":52080663462208,"sku":"NF0A8AEML2I1065000","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Lava Red\/Calacatta \/ M 9\/W 10.5","offer_id":52080663494976,"sku":"NF0A8AEML2I1090000","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Lava Red\/Calacatta \/ M 9.5\/W 11","offer_id":52080663527744,"sku":"NF0A8AEML2I1095000","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Lava Red\/Calacatta \/ M 10\/W 11.5","offer_id":52080663560512,"sku":"NF0A8AEML2I1100000","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Lava Red\/Calacatta \/ M 10.5\/W 12","offer_id":52080663593280,"sku":"NF0A8AEML2I1105000","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Lava Red\/Calacatta \/ M 11\/W 12.5","offer_id":52080663626048,"sku":"NF0A8AEML2I1110000","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Lava Red\/Calacatta \/ M 11.5\/W 13","offer_id":52080663658816,"sku":"NF0A8AEML2I1115000","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Lava Red\/Calacatta \/ M 12\/W 13.5","offer_id":52080663691584,"sku":"NF0A8AEML2I1120000","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Lava Red\/Calacatta \/ M 3.5\/W 5","offer_id":52378122846528,"sku":"NF0A8AEML2I1035000","price":230.0,"currency_code":"USD","in_stock":false},{"title":"Lava Red\/Calacatta \/ M 4\/W 5.5","offer_id":52378122879296,"sku":"NF0A8AEML2I1040000","price":230.0,"currency_code":"USD","in_stock":false},{"title":"Lava Red\/Calacatta \/ M 4.5\/W 6","offer_id":52378122912064,"sku":"NF0A8AEML2I1045000","price":230.0,"currency_code":"USD","in_stock":false},{"title":"Lava Red\/Calacatta \/ M 5\/W 6.5","offer_id":52378122944832,"sku":"NF0A8AEML2I1050000","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Lava Red\/Calacatta \/ M 7\/W 8.5","offer_id":52378122977600,"sku":"NF0A8AEML2I1070000","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Lava Red\/Calacatta \/ M 7.5\/W 9","offer_id":52378123010368,"sku":"NF0A8AEML2I1075000","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Lava Red\/Calacatta \/ M 8\/W 9.5","offer_id":52378123043136,"sku":"NF0A8AEML2I1080000","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Lava Red\/Calacatta \/ M 8.5\/W 10","offer_id":52378123075904,"sku":"NF0A8AEML2I1085000","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Lava Red\/Calacatta \/ M 12.5\/W 14","offer_id":52378123108672,"sku":"NF0A8AEML2I1125000","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Lava Red\/Calacatta \/ M 13\/W 14.5","offer_id":52378123141440,"sku":"NF0A8AEML2I1130000","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Lava Red\/Calacatta \/ M 14\/W 15.5","offer_id":52378123174208,"sku":"NF0A8AEML2I1140000","price":230.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7487\/5549\/files\/NF0A8AEML2I-HERO.jpg?v=1783984206","url":"https:\/\/spokex.com\/products\/the-north-face-summit-series-vectiv-sky-2-trail-shoe","provider":"SX Collective","version":"1.0","type":"link"}