KEEN Men's Gypsum Mid Waterproof Hiking Boot 100% Leather and Textile Imported Rubber sole Shaft measures approximately 5" from arch Boot opening measures approximately 15" around Lace-up mixed-media hiking boot featuring looped eyelets and padded collar Waterproof, breathable KEEN dry membrane Dri-Lex moisture control collar Dual-density molded ethylene vinyl acetate foam midsole KEEN zorb strobel Torsion stability ESS shank Thermoplastic polyurethane heel stabilizer