A great replacement for your average bra with smooth t-shirt cups, no wires, and supportive sides with a front closure for convenience. Made of nylon and spandex. Wireless, lightly padded contour/t-shirt cups give natural shape and lift. Side support panels originate at strap base and help center breasts. Elastic binding along neckline gives full coverage and containment. Narrow, tall center front has a hook-and-eye closure with coated metal hardware for easy on/off. See Fitter's Comments for hook count. Sewn-on, supportive elastic underband continues around back and lies flat to reduce show-through. Padded, center-pull straps adjust near top of shoulder with hook-and-eye panels with coated metal hardware to ensure fit stays in place. Sewn-on, supportive elastic underband continues around back. Tall sides have covered elastic at top, and are part of the tall smoothing back. Fabric info tag is sewn inside back. Inner back bands help promote healthy posture.