Maevn Back Mesh Panel Mock Wrap Top. Maevn EON Y-Neck Top made of 59% Polyester / 22% Rayon / 19% Elasterell-P. This is a y-neck top featuring a curved back yoke with double needle stitching. Back yoke mesh panel with piping inside. Mesh made of 83% Polyester / 17% Spandex. 2 patch pockets with cell pocket. Empire waist and bust darts. Back darts for added shape. Inner utility loop at pocket. Side vents. 27 3/4" length. COOLMAX? fabric technology by Invista employs specially engineered fibers designed to draw moisture away from the skin, keeping the wearer cool and dry.