Comfortable & Durable- Cooling Arm Sleeve is made of durable, weather resistant and stretchy material. Arm Covers are chemical FREE and completely safe for you and your kids. Our sleeves are incredibly durable and stretchy. Easy to wash and hang dry.One Size Fits Most- Uni arm sleeves cover up are designed to allow you maximum freedom of movement and it will fit men, women and children of all ages and body types. Our lightweight arm sleeve will keep you comfortable wheather you are playing golf, running, tennis, fishing, cycling, hiking, driving, or gardening. It is perfect for every outdoor adventure.UPF 50 Protection- cooling UV protection sleeves use innovative technology that blocks over 98% of harmful UVA and UVB rays so it offers UPF 50+ protection. Perfect for hot sunny days to protect yourself and others from the sun.Comfortably Cool & Wicks Moisture- The more you sweat, the cooler these arm sleeves get. Crazy, right? The sweat-wicking fabric in this cooling arm sleeve generously lets air in, keeping your arms cool even in extreme heat. After soaking in water, they will be cooler when wearing.