Enhanced heel pocket for secure fit · Form-fitting True Rib leg will stay put without compression · Short Crew sock · Heel, arch and toe cushioning · Moisture-wicking, odor resistant and temperature regulating wool blend · Stretch top stays put and reduces tension · Twin Knit combines a durable exterior with a moisture-wicking interior, utilising zoned performance to keep your feet warm and dry · Twin Knit · 57% Polypropylene/35% Nylon/3% Merino wool/3% Coolmax™ Polyester/2% Elastane