These leg warmers are made of a knit material with excellent heat retention, and the inside is fleece for comfort. Although this item is new and unused, it has been stored at home for a long time, so please refrain from purchasing if you are particular about it being brand new. - Brand: Thinsulate - Color: Black - Material: Knit (outer), Fleece (inner) - Features: Design with excellent heat retention - Usage: Leg warmers for winter Product Name: Ankle Warmer Cover Black Material: Surface: Acrylic, nylon, wool, polyurethane Lining: Thinsulate (65% polypropylene, 35% polyester) Size: Free size Country of Origin: Made in China Seller: Shoei Kogyo Co., Ltd. Care Instructions: Gently hand wash. Do not wash with other items. Do not use a dryer. Do not use bleach. Do not leave wet; hang to dry immediately. Thank you for viewing.