Cooling and UV Protection: Sunscreen sleeves not only keep you cool in hot summers， but also keep you warm in cold winters. Maximum protection for your arm.COMFORTABLE MATERIAL: The arm cover is made of cool polyamide and spandex high elastic material， which is comfortable and breathable， and the soft arm cover gives you a better wearing experience.Size: Athletic sun sleeves with thumb holes， good elasticity， fit most men's women's arms. Sleeves are 12.5" long and extend to 32.2". The upper arm circumference is 3.62 inches and extends to 9.8 inches. 5 colors: white， black， purple， pink， blueGREAT FOR OUTDOORS: Great for protecting your arms while doing outdoor sports. Such as golf， cycling， fishing， driving， jogging， hiking， boating， gardening， basketball， tennis， etc.