Kirkland Signature Men Merino Wool Blend 4-Pairs Socks Fits Shoe Sizes 7-13 new. Full cushion with durable reinforced heel and toe Arch support for superior fit Smooth finish toe seam Moisture wicking Repreve recycled nylon Made in the USA Content: 57% Merino Wool | 40% Nylon | 3% Spandex Sizing: Fits mens shoe size 7-13 Care Instructions: Turn inside out Machine wash warm Use non-chlorine bleach as needed Tumble dry low Do not iron Do not dry-clean