Product available with different options Merino wool SWZ 690 woolen ski socks SWZ-690L CZK380 SWZ is a wool ski sock fitted with a double-layer plush. Zones exposed to high stress such as the bottom, the toe and the Achilles‘ heel area are reinforced with a double-layer material, which forms an absorption layer protecting the user from corns and calluses. Material: 80% MERINO WOOL, 13% NYLON, 7% ELASTANE View