Features of The North Face Men's Corvara Shoe Designed for young and progressive explorers Upper: Seamless-mesh Upper provides an exceptional Fit and support around your foot Gusseted tongue keeps out debris Rolled-tongue top and heel-collar lining deliver the ultimate in long-lasting comfort No-sew TPU heel overlay provides stability and a natural lockdown Fit TPU forefoot overlay provides exceptional stability and flexibility and offers superior protection on the trail High Rebound OrthoLiteA(R) Footbed provides ultimate comfort Sole Unit: Responsive energy return FastFoam(TM) Midsole system 20 mm / 12 mm heel / forefoot EVA underfoot 8mm offset Proprietary ETS(TM) Outsole traction system Weighs in around 9.7 ounces each shoe