45NRTH Speck Heavyweight Knee High Wool Sock - Gray/Dark Blue LargeThis knee high sock is made with a Merino wool blend to wick moisture away from your feet keeping them warm and dry. Theyre designed to work well with boots without adding bulk but theyre warm enough to keep the chill at bay. Merino wool blend fabric 11" cuff height Ideal for the coldest days especially when wearing boots with pants and bibs Gender Age Unisex Color Grey Size Large Season Cool Weather Cuff Length 8"+ Material Wool Defined Color Gray