The Skin Cancer foundation now offers durable sun-protective shirts that block 97 percent of the sun`s ultraviolet rays. (UVR) .Offers a UPF rating of 40-50+. Made of premium 100% cotton, these tees are pre-shrunk for a perfect fit, wash after wash. The machine-washable tops are double-stitched for extra strength.The shirts are UV finished in the US and feature a 1/2 inch ribbed collar. The SCF logo appears just below the collar on the back of the shirt and is 2 inches square. $18 each. Please allow 3-5 weeks for shipping and handling once your order is processed. Size Chart