Magnum Elite Socks Properties: Magnum winter socks with antibacterial fibers: PROLEN SILTEX and PROLEN BODYFRESH. The design takes into account the specificity of trekking shoes, places of increased pressure on the foot and places where abrasions occur. Please note: socks should be washed at a maximum of 40 degrees Celsius. They should not be tumble dried. Sizes: 36-39, 40-43, 44-47 Material: 45% cotton, 25% polyester, 15% polyamide, 10% polypropylene, 5% elastane Manufacturer: Magnum