【UV Protection】50+ UPF rating provides excellent protection against ultraviolet rays, It can protect your skin away from UVA, UVB rays. 【Moisture Wicking】Breathable, Lightweight, Quick-Drying fabric actively wicks moisture away from the skin. 【Super Elasticity】Four-way stretch fabric stabilizes muscle with compression to prevent fatigue and energy loss. 【Multi-Use】 Long sleeve rash guard is suitable for most outdoor activities, good to use for water sports, such as surfing, water survival training, snorkelling, free-diving, wakeboarding, windsurfing, SUP,kite surfing, or simply for stand-up paddle surfing. 【Notice】If you have any size questions,please write to us.Or you can order ONE SIZE UP to get a regular fit.