The North Face Womens Hedgehog Fastpack GTX Trail Shoe is a fully waterproof and very breathable Gore-Tex shoe with a nicely cushioned Ortholite® footbed that makes this 3 season shoe super comfortable come rain or shine, all the while offering tons of grip thanks to the world-renowned Vibram® sole. Features Gore-Tex® waterproof membrane PU coated leather Abrasion resistant & breathable mesh Rustproof hardware Ortholite® foot bed Cradle™ technology Vibram® XS Trek outsole features a proven lug pattern from wet & dry traction Glossary Gore-Tex® is a highly breathable, fully waterproof & windproof membrane with microscopic pores about 20, 000 times smaller than a drop of water but 700 times larger than a water vapour molecule. This prevents water from penetrating while allowing vapour to escape. Ortholite® footbed combines a specific Ortholite® foam & an EVA heel cup. The foam creates a cooler, drier, healthier, better cushioned environment under the foot & will not break down or lose effectiveness over time. The heel cups add better heel support & extra cushioning. CRADLE™ technology is engineered to naturally absorb impact, stabilize the foot & promote an anatomically correct stride by supporting the perimeter of the heel & ensuring the fatty tissues under the bursa are biomechanically positioned. Vibram® Outsole is a patented tread pattern that is engineered for excellent traction.