The Drake Men's Wingshooter's Plaid L/S Sun Shirt is 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.