BUFF SWITCH POLAR NECK WARMER (ONE SIZE) SOLID ICE 541321 ● You can adjust it yourself to allow for ventilation or, conversely, to block out the winter wind. An item that can be used all day long. Stored at home. Only tried on. Will sell to someone who is not overly concerned about minor details. Made with 45% wool for a warm and soft feel. Thank you. [ Specifications/Standards ] ● [Material] Outer fabric: 45% wool, 36% polyester, 16% nylon, 3% others; Inner fabric: 95% recycled polyester, 5% polyurethane; Strap: 55% recycled polyester, 45% elastic thread ● [Size] 21 x 26cm ● [Weight] 56g ● [Specifications/Functions] Recycled content, insulation, can be converted into a beanie ● [Country of origin] Spain ● Manufacturer part number: 541321