Featuring a seamless wrap-around engineered knit upper, the Altra Women's Superior 5 Trail Shoes deliver a secure precision fit for an agile performance on the train that's comfortable and allows your feet to breathe so your temperature is regulated. Designed with a traditional lacing system and a roomy FootShape™ toe box to give a lockdown feel while providing enough room for your feet to move and splay naturally. Quantic™ technology at the midsole gives lightweight yet responsive underfoot cushioning while a durable MaxTrac™ outsole with high traction TrailClaw™ lugs instils confidence on technical terrain. Balanced Cushioning With a zero-drop construction, your heel and forefoot are placed at the same distance from the ground ensuring comfortably balanced cushioning that promotes efficient low-impact form with each stride. FOOTSHAPE™ toe box Enhancing both comfort and stability, the FOOTSHAPE™ toe box gives enough room to allow your toes to relax and spread out naturally as you move. GAITERTRAP™ debris protection Prevent trail debris from building up beneath the shoe with a convenient hook-and-loop tab to secure a strapless gaiter attachment. TRAILCLAW™ lugs Increasing traction at toe-off, canted lugs are positioned strategically beneath the metatarsals to deliver extra grip. MAXTRAC™ traction with TRAILCLAW™ lugs Take on technical terrain with confidence thanks to the perfect balance of superior traction alongside long-lasting durability.