Icebug Women's Glava BUGweb-W 100% Leather Synthetic sole Shaft measures approximately 5" from arch Boot opening measures approximately 9.5" around Comes with removable BUGweb with 6 carbide studs for added traction Water repellent leather and suede upper Fleece lined for warmth Back heel zipper for easy on and off Alu sheet insock blocks cold from ground Comfort cushioned midsole, 50% recycled rubber outsole Ideal for winter activities, urban commuting, walking the dog -4F/-20C Comfort Zone