Montrail Mens Skinners Butte Waterproof Responsive Trail Running Shoe 100% Textile Imported Synthetic sole Classic montrail styling that offers a perfect blend of traction, support and flexibility Mesh construction with webbing overlays for fit and support with a waterproof breathable membrane construction Lightweight and responsive for aggressive terrain Compression molded ethylene vinyl acetate midsole Gryptonite outsole combined with a full length shield for underfoot protection