Dual Lacing, Refined Experience enhanced comfort and control with Mount to Coast&';s signature TUNEDFIT(TM) Dual Lacing System. With two cinch cords per shoe, you can adjust the fit around the forefoot and midfoot independently in seconds. With the adjustable fit, it lets your toes splay, flex, and power through the longest runs in the toughest terrain. Dries Fast, Built to Last Crafted from a high-performance woven fabric and reinforced with aramid fibers that are five times stronger than steel, the T1&&';;s upper is relentlessly durable. Its anti-siphon knit tongue repels water, ensuring a breathable, fast-drying design that thrives in the harshest conditions. Midsole Mastery LightCELL(TM), Mount to Coast&';s proprietary midsole, is turbocharged through supercritical foaming. LightCELL(TM) weighs just 50 percent of EVA while offering 45 percent greater energy return - it&&';;s battle-tested by hundreds of ultrarunners for consistent responsiveness, mile after mile. VibramA(R)&&';;s Finest The T1&&';;s outsole features a trio of VibramA(R) innovations: Megagrip rubber for tenacious traction in any condition, Litebase for 30 percent less weight without compromising performance, and Traction Lug micro-features for up to 25 percent more grip. APMA Seal of Acceptance This product received the American Podiatric Medical Association (APMA) Seal of Acceptance, awarded to products found by the Association to promote good foot health. Key Features Upgraded TUNEDFIT Dual Lacing System for separate lace adjustment LightCELL midsole base featuring excellent lightness and bounce Vibram Megagrip, Litebase, and Traction Lug technology High-performance woven fabric upper reinforced with aramid fibers Weight: 9 oz / 255 g (US M9) Drop (Stack Height): 4 mm (Heel 36 mm, Forefoot 32 mm)