Montrail Women's Rogue Fly Trail Running Shoe 100% Textie Imported Synthetic sole Lightweight and flexible trail running shoe with great support and protection Breathable mesh upper designed to flex with the foot and be supportive Compression molded ethylene vinyl acetate midsole Gryptonite rubber outsole with forefoot trail shield for great underfoot protection Ride heights 18 millimeter heel and 8 millimeter forefoot