SUGOi Women's RSR Tank 81% Nylon 19% Spandex Imported 1 back invisible zip pocket for security and 1 elasticized back pocket expands easily Soft Power Mesh independent bra with supportive stretch and breathability Brushed 1 1/2 inch moisture wicking support elastic Racer back with key hole detail Flat seams for increased comfort Zone Construction: features mesh inserts for added ventilation