Whether it's a job or a hobby that keeps you outdoors all day, you need protection from harmful UV rays. The Wingshooter's Plaid Sun Shirt has UPF +50 protection to shield you from all-day exposure to the sun. Ultra-light nylon/poly blended fabric and strategically placed front and back vents keep you cool and dry in the field or on the water. UPF (Ultraviolet Protection Factor) is a rating system used for apparel to indicate how effectively the fabric shields skin from harmful UV rays. Our UPF 50+ fabric protects against both UVA and UVB light to prevent sunburn and harmful effects of prolonged exposure to UV rays. Materials 85% polyester / 15% nylon blended fabric SolShield UPF 50+ sun protection FeaturesQuick-drying and breathable Front and back heat vents Sun blocker extension collar Large chest pockets Magnattach chest pocket Zippered chest pocket