Covert Threads Ice Military Boot Socks 47 percent Wicking Acrylic / 35 percent Wool / 12 percent Nylon / 3 percent Lycra Spandex / 3 percent Silver Lining Made in US Contents: 48 percent Wicking Acrylic / 35 percent Wool / 12 percent Durable Nylon / 3 percent Spandex Lycra / 3 percent Nano Silver Made in the USA Absorbent Acrylic and Wool keep feet dry all day Designed to eliminate hot spots and absorb toe and heel impact