Stretchable material fits snugly on your arm. We have a long length that covers from the bottom of the shoulder to the back of the hand, and a short length that is compact and easy to use. Product Specifications: Protects your arms from harmful UV rays in a variety of situations. Easy to use as it is portable and easy to use. For UV protection when you go out for golf, driving, cycling, jogging, etc. When its a little cold, you can take it out of your bag and put it on your arm for a long sleeve. Please be careful when washing this product. Do not use detergent with bleach.Do not tumble dry. Size (Length): Approx. 15.7 inches (40 cm); One size fits all; Material: Nylon, polyurethane; Weight: Approx. 1.1 oz (30 g).