PREMIUM QUALITY - 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. Material is breathable, dries fast, wicks moisture away from the skin and makes your skin feel fresh all day.UPF 50 PROTECTION - Our cooling UV protection sleeves use innovative technology that blocks over 98% of harmful UVA and UVB rays so it offers UPF 50+ protection. Our is perfect for hot sunny days to protect yourself and others from the sun.ANTI-SLIP & EXQUISITE STITCHING - Discover the one of a kind UV protection arm sleeves with special elastic band nonskid design and delicate stitching. Nonskid elastic band stick on your skin and won't let the sleeves slip annoyingly. These sleeves won't be easily ripped off because of the elaborate sewing with high-quality articulated seaming.