Guarantee your comfort when walking and hiking with these smartwool trekking heavy crew socks they are full cushioned and provide shock absorption support and insulationthe smartwool trekking heavy crew socks are a pair of heavyweight full cushioned socks they feature wool on wool technology reinforced areas for maximum comfort and durability an arch brace to hold the sock in place and add additional support plus flat knit toe seams for no irritation comfortsize guideactivitywalking h