The fabric rating UPF 50+ protects your skin from the harmful UVA/UVB rays,keeping you cool while outdoors in the direct sunlight.Great for swimming as a cover shirt,light shirt for hiking. Technical fabric wicks moisture away from your skin and dries quickly for extra comfort, keep you cool and dry on running or workout. Raglan sleeves and no tag collar/flat-seam construction ensure a full range of motion and help reduce chafing. The thumb holes keep the sleeves in place and give extra coverage for sun protection. Perfect for a day of workout,fishing,sailing,surfing,diving,swimming,running,hiking,biking,sailing,kayaking,paddle sports,boating,beach volleyball,soccer,water park sliding,camping and any other of your favorite outdoor activities.