{"product_id":"nike-acg-ultrafly-trail-racing-shoes-spruce-fog-black-spruce","title":"Nike ACG Ultrafly Trail Racing Shoes - Spruce Fog\/Black Spruce","description":"\u003cp data-pm-slice=\"1 3 []\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNike ACG Ultrafly Trail Racing Shoes – Spruce Fog\/Black Spruce\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e are built for runners who want elite speed, lightweight cushioning, and confident control across long-distance trail efforts. Designed for fast movement over rugged terrain, the Ultrafly combines responsive ZoomX foam, a refined full-length carbon fiber plate, and Vibram® Megagrip traction to deliver a race-ready blend of propulsion, cushioning, and stability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAt the core of the Ultrafly is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eZoomX foam\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, Nike's lightweight and highly responsive cushioning platform. Engineered to deliver strong energy return while maintaining a stable feel on uneven terrain, the midsole helps support efficient transitions through technical trail sections. An unwrapped heel design further enhances responsiveness and promotes a smoother ride from landing through toe-off.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFinished in \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSpruce Fog\/Black Spruce\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this ACG trail racer balances technical performance with a versatile outdoor-inspired look. From long-distance trail races to fast efforts over rocky, wet, and uneven ground, the Ultrafly is designed to help you maintain speed without sacrificing confidence underfoot.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eZoomX Foam for Responsive Trail Cushioning\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNike's \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eZoomX foam\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides lightweight cushioning with high energy return, helping create a fast and responsive feel over extended distances.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe foam is tuned to deliver cushioning without excessive bulk, giving trail runners a combination of softness, responsiveness, and support for long efforts over changing terrain.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAn \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eunwrapped heel design\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e allows the foam to work more freely, enhancing responsiveness and helping create smoother transitions when navigating technical sections.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFull-Length Carbon Fiber Plate\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003efull-length carbon fiber plate\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e adds propulsion and efficiency to the Ultrafly's trail-focused platform.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe plate is designed with a softer, more flexible feel than more rigid racing constructions, allowing it to better adapt to uneven terrain while still providing forward momentum.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis balance of propulsion and flexibility helps runners maintain speed while preserving a more controlled and natural feel on the trail.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVibram® Megagrip Traction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUnderfoot, a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eVibram® Megagrip outsole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e delivers dependable traction and durability across demanding trail surfaces.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe outsole is designed to provide confident grip on \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ewet, rocky, loose, and technical terrain\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, helping runners maintain control during climbs, descents, and quick transitions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts performance-focused construction also helps reduce unnecessary weight while preserving the durability needed for long-distance trail racing.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLightweight Mesh Upper\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Ultrafly features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003elightweight mesh upper\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e engineered for breathability, durability, and water drainage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis construction helps keep air moving around the foot during demanding efforts while allowing water to drain more efficiently in wet conditions, stream crossings, or unpredictable weather.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe upper provides the structure needed for long-distance performance without adding unnecessary bulk.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eBuilt for Long-Distance Trail Racing\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWith an approximate weight of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e287 g (10.1 oz)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e8.5 mm heel-to-toe drop\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the ACG Ultrafly is designed to balance cushioning, propulsion, and control.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts combination of responsive foam, flexible carbon propulsion, durable traction, and breathable construction makes it well suited for runners tackling technical miles, trail races, and long-distance off-road efforts.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eZoomX Foam Midsole:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Lightweight, responsive cushioning designed for strong energy return.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eUnwrapped Heel Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Enhances responsiveness and promotes smoother transitions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFull-Length Carbon Fiber Plate:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Adds propulsion while maintaining flexibility for trail control.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTrail Racing Performance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Engineered for speed and efficiency over rugged terrain.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVibram® Megagrip Outsole:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Provides dependable traction on wet, rocky, loose, and technical surfaces.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLightweight Mesh Upper:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Promotes breathability while supporting durability and water drainage.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLong-Distance Cushioning:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed to maintain comfort and responsiveness over extended trail efforts.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFlexible Propulsion:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Carbon plate construction balances forward momentum with terrain adaptability.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLightweight Construction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximately 287 g (10.1 oz).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e8.5 mm Heel-to-Toe Drop:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Provides a balanced platform for trail racing and long-distance running.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTrail-Ready Stability:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed to maintain control across uneven and changing terrain.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSpruce Fog\/Black Spruce Colorway:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Versatile outdoor-inspired styling with a technical trail aesthetic.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eBest For\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTrail racing\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLong-distance trail running\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTechnical terrain\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRocky trails\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eWet trail conditions\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLoose surfaces\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFast trail efforts\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRacing and competition\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eResponsive cushioning\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCarbon-plated propulsion\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLightweight trail performance\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRunners seeking premium traction\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eClimbs and descents\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eExtended off-road mileage\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCategory:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Trail Racing Shoes\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBrand:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Nike\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCollection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e ACG\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eModel:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ultrafly Trail\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMidsole:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e ZoomX Foam\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHeel Construction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Unwrapped ZoomX Heel\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePlate:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Full-Length Carbon Fiber\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePlate Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Flexible Trail-Oriented Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eUpper:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Lightweight Breathable Mesh\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWater Management:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed for Water Drainage\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOutsole:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Vibram® Megagrip\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTraction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Wet, Rocky, Loose \u0026amp; Technical Terrain\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eApproximate Weight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 287 g \/ 10.1 oz\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHeel-to-Toe Drop:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 8.5 mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrimary Use:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Trail Racing \u0026amp; Long-Distance Trail Running\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eColor:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Spruce Fog\/Black Spruce\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Nike","offers":[{"title":"Spruce Fog\/Black Spruce \/ M 7 \/ W 8.5","offer_id":67621306204525,"sku":"HF5668-300","price":259.95,"currency_code":"USD","in_stock":false},{"title":"Spruce Fog\/Black Spruce \/ M 7.5 \/ W 9","offer_id":67621306237293,"sku":"HF5668-300","price":259.95,"currency_code":"USD","in_stock":false},{"title":"Spruce Fog\/Black Spruce \/ M 8 \/ W 9.5","offer_id":67621306270061,"sku":"HF5668-300","price":259.95,"currency_code":"USD","in_stock":false},{"title":"Spruce Fog\/Black Spruce \/ M 8.5 \/ W 10","offer_id":67621306302829,"sku":"HF5668-300","price":259.95,"currency_code":"USD","in_stock":false},{"title":"Spruce Fog\/Black Spruce \/ M 9 \/ W 10.5","offer_id":67621306335597,"sku":"HF5668-300","price":259.95,"currency_code":"USD","in_stock":false},{"title":"Spruce Fog\/Black Spruce \/ M 9.5 \/ W 11","offer_id":67621306368365,"sku":"HF5668-300","price":259.95,"currency_code":"USD","in_stock":false},{"title":"Spruce Fog\/Black Spruce \/ M 10 \/ W 11.5","offer_id":67621306401133,"sku":"HF5668-300","price":259.95,"currency_code":"USD","in_stock":false},{"title":"Spruce Fog\/Black Spruce \/ M 10.5 \/ W 12","offer_id":67621306433901,"sku":"HF5668-300","price":259.95,"currency_code":"USD","in_stock":false},{"title":"Spruce Fog\/Black Spruce \/ M 11 \/ W 12.5","offer_id":67621306466669,"sku":"HF5668-300","price":259.95,"currency_code":"USD","in_stock":true},{"title":"Spruce Fog\/Black Spruce \/ M 11.5 \/ W 13","offer_id":67621306499437,"sku":"HF5668-300","price":259.95,"currency_code":"USD","in_stock":false},{"title":"Spruce Fog\/Black Spruce \/ M 12 \/ W 13.5","offer_id":67621306532205,"sku":"HF5668-300","price":259.95,"currency_code":"USD","in_stock":false},{"title":"Spruce Fog\/Black Spruce \/ M 13 \/ W 14.5","offer_id":67621306564973,"sku":"HF5668-300","price":259.95,"currency_code":"USD","in_stock":false},{"title":"Spruce Fog\/Black Spruce \/ M 14 \/ W 15.5","offer_id":67621306597741,"sku":"HF5668-300","price":259.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1218\/1370\/files\/nike-acg-ultrafly-trail-racing-shoes-spruce-fogblack-spruceseliga-shoesathletic-1013562.png?v=1791272232","url":"https:\/\/seligashoes.com\/products\/nike-acg-ultrafly-trail-racing-shoes-spruce-fog-black-spruce","provider":"Seliga Shoes","version":"1.0","type":"link"}