The unbeatable insulating properties of wool matched with the steel-toe toughness of high-abrasion fibers in the heels and toes for unsurpassed durability. Ribbed construction guarantees maximum stretch. Spandex and arch support ensure a secure fit. Flat-toe seams for comfort. 86% wool/8% nylon/5% acrylic/1% Lycra®. Made in USA. Sizes: L-XL. Colors: Brown, Mossy. Carhartt Style No.: A450.