When you need tall boot protection without the bulk, slip into the Kenetrek Canada Socks with reinforced heel, toe and shins pads so you won't feel any lacing pressure. Insulates when damp and itch free.SizingMedium 5-8Large 9-12XL 13-15FeaturesReinforced heel, toe and shin padsItch free33% merino wool, 33% polypropylene, 26% nylon, 5% elastic, 3% lycra