This pair of arm sleeves is made of Polyamide lycra and silicone inside that the elastic can fit perfectly to your arms to avoid falling off. Perfect accessory for all outdoor and indoor acticities even work-place. It is intended for outdoor sports like cycling, golfing, fishing, jogging and basketball protecting you from sun burnt and injuries. Available in a variety of bold colors. Your custom logo can be printed on it. 15 3/8" L x 5 1/8" W