Cooling & UV Protection: Sun protection sleeves not only will you feel cool in hot summer, but also give you warmth in the cold winter. Maximal protect your arms.Comfortable material: Arm sleeves made of cooling polyamide and spandex high elasticity material, comfortable and breathable, soft arm sleeves give you a better wear experience.Size: Sports sun sleeves with thumb hole, good stretchy, suitable for most men women arms. The length of the sleeve is 12.5" and stretches to 32.2". the upper arm circumference is 3.62", stretches to 9.8". 5 Color : White, Black, Purple, Pink, BlueGreat for outdoor sports: Great to protect your arm when you doing outdoor sports. Such as golfing, cycling, fishing, driving, jogging, climbing, boating, gardening, basketball, tennis and so on.Refund guarantee: Any question, please contact us. We guarantee give you return or refund.