Nevica Meribel Sock Fabric Composition : 42% Polyamide 23% wool 32% Acrylic 2% Polyester 1% Elastane. These socks are breathable, warm, and comfortable with a thick-knee wool design perfect for cold weather. The over calf design provides shin protection, making them ideal for skiing, snowboarding, and other snow sports. They feature an elasticated heel for a proper fit. Please note: The style you receive may vary from the image shown.