The Under Armour Streaker Running range offers Runners a super lightweight Microthread material technology in the fabric that dries faster, doesnt chafe & absorbs sweat without compromising on comfort. Added details also include a Signature Moisture Transport System wicks sweat to keep you dry & light, 4-way stretch construction improves mobility & maintains shape, Ergonomic flatlock seams allow you to move free without chafing, Shaped hem enhanced coverage, racer back design unlocks amazing range of motion while the Reflective logos deliver greater visibility on low-light runs. This Short sleeve t shirt offers a little extra coverage without the added weight.