Montrail Mens Mountain Masochist III Trail Running Shoe 100% Textile Imported Synthetic sole Classic Montrail trail running shoe that offers a perfect blend of traction, support, and flexibility Mesh construction with webbing overlays for fit and support Fluidfoam midsole with support provided by a Fluidframe technology Gryptonite outsole combined with full length trail shield for underfoot protection Ride heights 16 millimeter heel and 8 millimeter forefoot