Your new favorite brown boot killer has been updated to be even more durable and sturdy. The Lone Peak 4 Mid Mesh features a newly revamped mesh complete with the 4-point GaiterTrap(TM) to keep dirt, dust, sand and debris out as well as enhanced durability and breathability. The outsole is revamped with multi-directional lugs and decoupled TrailClaws. Enjoy the enhanced breathability of a mesh hiker with the same comfort and design as before, and with Altra's signature FootShape(TM) toe box and Balanced Cushioning platform you can continue to hike comfortably and balanced. BALANCED CUSHIONING Places your heel and forefoot the same distance from the ground to encourage proper, low-impact form throughout your trail run. FOOTSHAPE(TM) TOE BOXFOOTSHAPE(TM) TOE BOX Allows your toes to relax and spread out naturally for more comfort and stability in uphill climbs and downhill descents. GAITERTRAP(TM)GAITERTRAP(TM) Hook-and-loop tab allows strapless gaiter attachment that prevents debris from building up beneath the shoe. TRAILCLAW(TM)TRAILCLAW(TM) Canted lugs positioned strategically beneath the metatarsals to provide traction at toe off. DURATREAD(TM)DURATREAD(TM) Durable outsole rubber made to last long and offer great grip on both tame and technical terrain. Specifications Weight: 12.3 oz / 349 g Insole: 5 mm Contour Footbed Midsole: Dual Layer EVA / A-Bound(TM) with StoneGuard(TM) Outsole: DuraTread(TM) Rubber with TrailClaw(TM) Cushion: Moderate Stack Height: 25 mm Upper: Quick-Dry Air Mesh