A technical shirt packed with features and available as both a short sleeve and long sleeve style. The Vista Short Sleeve Shirt is made with 94% brrr° fabric, a new technology that continuously works to cool you down. No worries, though - there are no chemicals involved. brrr° technology works as a three-part system that utilizes cooling minerals, active wicking, and rapid drying to lower the temperature of your skin. Plus, it's rated UPF 50+.