|Glamorise Adjustable Support Underwire Sports Bra (9166). Supportive cups with an adjustable bounce control front give you the freedom to take on any workout. Made of a performance blend of polyester, nylon, and elastane for wicking comfort. Outer front has curved seaming, with contrast middle panel, and is lined with an inner cup. Inner seamless, shaped, unpadded, non-stretch cups have padded Wonderwire underwires for support. Inner support sling runs from center front to side seam and covers padded Wonderwire. Center front and back is ventilated stretch performance fabric for additional support and uncompromised airflow. V-style neckline has padding and sewn-on elastic edge for fit. Plastic S-hooks at top front adjust level of support by fitting hooks into slots along the strap fronts. Sewn-on inner elastic underband maintains a soft, snug hold. Perforated, stretch sides and back have sewn-on elastic at top and bottom edges. Padded front straps have elastic edges, and exposed elastic at back with adjustable plastic hardware. Soft hook-and-eye closure with coated metal hardware at back. See Fitter's Comments below for hook count. Sturdy, supportive leotard back has kicked-in straps to help prevent slipping.