Eastbay EVAPOR Compression Tank - Men's The Eastbay Compression Tank features two separate mesh panels along the back and mesh panels on the sides to aid in breathability. EVAPORô moisture-management construction wicks the sweat from your body, leaving you cool and dry. Tagless, flat lock seams. Eastbay logo on the bottom on wearer's left. Designed to fit under a basketball jersey. 84% polyester/16% spandex. Imported.