Icebug Men's Metro BUGrip-m 100% Leather Imported Synthetic sole Shaft measures approximately 6" from arch Heel measures approximately 1.5" Platform measures approximately 0..5" Boot opening measures approximately 10" around Stretch inset collar Full-length instep zipper Waterproof foot protection Warm fleece lining Ortholite removable sockliner EVA midsole with ESS stabilizer BUGrip outsole with 16 carbide tip studs