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 14.9" and stretches to 47-1/4". the upper arm circumference is 3.7", stretches to 8-1/4". 5 Color : White, Black, Purple, Pink, Blue Great 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 feel free to contact us. We guarantee give you return or refund.