PREMIUM QUALITY – Cooling Arm Sleeve is made of durable, weather resistant and stretchy material (90% nylon, 10% spandex). Arm Covers are chemical FREE and completely safe for you and your kids. Material is breathable, dries fast, wicks moisture away from the skin and makes your skin feel fresh all day. ONE SIZE FITS MOST – Unisex tattoo 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 – SportsTrail cooling UV protection sleeves use innovative technology that blocks over 98% of harmful UVA and UVB rays so it offers UPF 50+ protection. Mangas para brazos para el sol is perfect for hot sunny days to protect yourself and others from the sun.