The Gel Trail Attack 4 WR from Asics features running shoe built for the neutral to under-pronator who requires lightweight cushioning. The trail runner looking for a lightweight performance ride can have it all with the Gel-Trail Attack 4 WR that offers superior grip on any terrain along with a Nylex plate for forefoot protection against small rocks. Water Resistant Upper keeps the foot dry and warm during harsh weather conditions. 3M reflective material enhances visibility during low light hours. MONO-SOCKFit System employs an elastic internal sleeve in place of a traditional tongue providing a sock-like fit that works to secure the foot for superior responsiveness. ASICS Forefoot and Rearfoot GEL Cushioning System is strategically placed at high impact areas in the forefoot and rearfoot for shock absorption. SpEVA is a proprietary midsole material that improves bounce-back characteristics and decreases midsole breakdown. Trusstic System exists as a molded component which reduces the weight of the sole unit while retaining the structural integrity of the shoe. Links the rearfoot and forefoot and shores the midfoot. Performance Trail Outsole designed with reversed lugs for uphill and downhill traction while protecting forefoot against stone bruises. AHAR Heel Plug- ASICS High Abrasion Resistant rubber has been added to critical areas of the outsole for increased durability.