Fluidfoam midsole with flexibility and support. Ride heights: 20mm heel/10mm forefoot. Full length Gryptonite outsole with flex grooves and trail shield for enhanced protection. Waterproof, cushioned and lightweight trail shoe with protection and flexibility. Seamless midfoot frame construction for fit and support combined with screened rubber print for abrasion resistance. OutDry® waterproof breathable membrane construction. http://www.backcountry.com/montrail-bajada-ii-outdry-trail-running-shoe-womens