air zoom Nike trail running mens 8.5, women's 10 ready to run through the mud and with the trail. new without box Benefits A lightweight, breathable mesh at the upper feels cool and secure. It's fully lined to keep debris out. The heel is designed to lock in place, keeping your foot secure and moving with the shoe. It results in more agility over rocky terrain. Multidirectional traction lugs in the heel are made from high-abrasion rubber. They help provide enhanced grip on descents and ascents. Nike React technology is a lightweight and durable foam that delivers a responsive ride. A Zoom Air unit in the forefoot provides extra responsiveness, returning your energy to help guide you down the trail. Rock plate at the heel helps shield your foot on rough terrain. Skins at the toe provide abrasion resistance. Padded tongue helps relieve pressure caused by foot swelling over long runs. shoes