Made of 100% polyester, our compression arm sleeves are perfect for keeping your arms dry and cool whether you're on a stroll, a rigorous hike or out for a run. Features: One size fits most, Comes in pairs, 100% polyester, Dye sublimated full-bleed available, Ultra soft, comfortable construction, Wicks moisture away to keep you cool, Great for other activities, such as basketball, cycling, tennis and more. Machine wash in cold water.