【UV PROTECTION】 - To avoid prolonged skin exposure to the sun, avoid reapplying sunscreen. Designed with a UPF 50+ rating, our sun protection arm sleeves are a significant improvement over sunscreens, so you'll get perfect coverage whether you're working or golfing in the heat.【COOL TEMPERATURES】 - Our sun sleeves keep you cool in summer while protecting your arms from sunburn. With our cooling technology, moisture-wicking, quick-drying materials keep you cool in hot weather and warm in cold weather.【COMFORTABLE AND EFFECTIVE】 - not only to ensure good sun protection, we pay more attention to wearing comfort. Made from a blend of 90% cotton and 8% spandex, our sleeves have excellent moisture wicking properties, ensuring the sleeves help keep your arms cool and dry during the hot months, even after long walks.【GREAT FOR OUTDOOR ACTIVITIES】 - These cooling arm sleeves are perfect for outdoor activities, whether it's work, golf, baseball, volleyball, biking or anywhere you will be outdoors in the sun for extended periods of time, these sleeves will protect you. These sleeves not only protect you from the sun, but also protect against minor cuts and scrapes. High elastic design, suitable for both men and women.【WE GUARANTEE】 - your purchase is risk-free and if you are not satisfied for any reason, we will provide a 100% refund.