Shrug off rain, snow, mud, and nearly any element Mother Nature throws your way, in the Altra® Lone Peak 3 Mid Neoshell trail-running shoe.Predecessor: Lone Peak 2.5.Support Type: Neutral to underpronation. Cushioning: Lightweight, flexible response. Surface: Trail.Differential: 0 mm.Altra Zero Drop recommends that those new to natural running and zero-drop footwear transition slowly by wearing these on shorter runs and gradually building up to regular mileage. Natural-running-inspired shoe with a zero-drop differential and moderate cushioning, that is ideal for trail running, hiking, fastpacking, trail racing, and cold conditions.Designed to improve running form, toe splay, stability, push-off, traction, and comfort. NeoShell® upper technology repels rain, snow, dew, and mud. Abrasion-resistant mesh upper features minimal seams to reduce the likelihood of irritation. Gusseted tongue helps keep debris out. Lace-up closure. FootShape™ toebox design allows the foot to splay naturally and maintain proper alignment, while absorbing shock and promoting a more powerful toe-off. Gaiter Trap™ features a tab to secure gaiter to the shoe without having to strap it below the outsole. Heel pull loop.Light tongue and collar padding. Breathable fabric lining for a great in-shoe feel. Removable 5 mm Contour footbed. Fully cushioned Zero Drop™ Platform promotes a natural foot strike and an efficient stride. Natural Ride system (NRS) utilizes a combination of outsole and midsole componentry along with anatomical design, the Zero Drop platform and foot-shaped lasts to promote a more natural stride.EVA midsole with A-Bound™ top layer. Total Stack Height (total thickness of midsole and outsole underfoot): 25 mm.Altra MaxTrac sticky rubber outsole with TrailClaw® for optimal traction over varied terrain.StoneGuard™ Sandwich Rock helps deflect rocks for a smoother, more stable ride. Last: SD5-WImported. Measurements: Heel Height: 1 in Weight: 12 oz Circumference: 13 1⁄2 in Shaft: 4 1⁄2 in Platform Height: 1 inProduct measurements were taken using size 9, width B - Medium. Please note that measurements may vary by size.