Under Armour Men's UA HeatGear Armour Short Sleeve Compression Shirt Small High-Vis Yellow

HeatGear fabric, with all the benefits of UA. Compression, comfortable enough to be worn all day. Stretch-mesh underarm panels deliver strategic ventilation. UPF 30+ protects your skin from the sun's harmful rays. 4-way stretch fabrication allows greater mobility in any direction. Moisture Transport System wicks sweat & dries fast. Anti-odor technology prevents the growth of odor causing microbes. Mesh panel on back neck with ARMOUR wordmark.