Ditch the thin cotton with the big toe hole & treat your feet. The Defeet Woolie Boolie Black Sheep Sock takes natures best insulator, grown naturally by farmyard animals, & weaves socks that your feet will thank you for as you get the winter miles in. Ditch the thin cotton with the big toe hole & treat your feet. This is a 4 tall ribbed cuff version of the original wool sock. Defeet retained all the positives of the natural fiber & none of the shortcomings for a warm, itch free winter sock. Natural Itch free, comfortable Warm Description by Kimberly Pulley, Rutland Cycling e Commerce Team.