This is a 4" tall ribbed cuff version of our reknowned, padded foot wool sock. We started knitting the Woolie Boolie before wool was cool. When the Woolie Boolie was launched, you couldn't give wool away for free. The Woolie Boolie helped reignite a love for great wool by retaining all the positives of the natural fiber and none of the shortcomings. Itchy? No. Trusted companion on the most severe missions you go on? Yes. If a pair of socks has ever gotten close to having a true cult following, it's the Woolie Boolie. Composition: 49% Nylon, 48% American Merino Wool, 3% Lycra