UPF 50+ Sun Protection: It can protect your skin away from UVA / UVB rays with safer and cooler on outdoor sports.Cool & Dry: Quick-Drying and Lightweight fabric with excellent moisture-wicking and breathability keep you cool and dry on running or workout.Comfortable & Skin-friendly: Tag-free collar and Flat-lock seams combined with soft fabrics can reduce friction and improve comfortable and skin-friendly.Beautiful & Practical: Slim waist and longer hem can highlight your figure while protecting you from cold or sun, so it can be worn as a sweatshirt or undershirt.An Excellent Choice of Shirts: this women's long sleeve shirt is perfect for swimming, rashguard, hiking, running, cycling travel and a variety of outdoor activities.