APNIEDUKAN Chintels uv sleeves are incredibly durable and stretchy. Easy to machine wash and hang dry. Our stretchy 90% nylon 10% spandex blend make them perfect for both men and women.For 10.5-16in Bicep. If you have big arms, you really don’t have to worry about it cutting off your biceps blood circulation, or the length makes you suspect that this is for children. Cooling sleeves are not like professional compression sleeves, it will provide enough compression to keep them in place, and it will be so comfortable that you forget have them on.The cooling sleeves are stretchy and incredibly durable. With form fitting compression, it fits all arms sizes and shapes.