Eastbay EVAPOR Sleeveless Compression Crew - Boys' Grade School Wearing clothes close to your skin enhances your performance by removing the friction and distraction of loose apparel. The Eastbay Compression Top takes that a step further by incorporating EVAPORô permanent moisture-management fabric to wick away sweat from the skin and help keep you cool and dry. The chafe-free construction, featuring flatlock seams and a tagless interior, lets you focus on your game and your training. Compression fit further decreases friction and chafing and helps support the muscles during vigorous activity. Made of 170 gram 84% polyester/16% spandex. Imported.