|Under Armour Warp Knit High Impact Sports Bra (1311821). Perfect for your high intensity workouts, this moisture-wicking sports bra features ultra-comfortable underwire support with classic racerback styling for a fuller range of arm motion. Compression styling keeps a close, custom fit with plenty of stretch for flexibility. Made of knit polyester, elastane and nylon. Contour/t-shirt underwire cups are lightly padded for smooth, round coverage and have a breathable interior surface for comfort. Underwires are gel-coated for comfort and support. Mesh inset at underside of cups for enhanced breathability. Tall center front helps contain breast tissue and reduces bounce with fuller coverage. Wide, super soft and smooth covered elastic underband provides additional support. Reflective Under Armour logo is centered at front underband for safety in low lighting. Cushioned front straps attach to restricted stretch straps at back, adjusting with coated metal hardware. Racerback styling for stability and an enhanced range of shoulder motion. Keyhole at base of racerback panel for ventilation. Tall, seamless sides and back have a mesh lining and covered elastic along the top edge and an elastic band along the bottom. HeatGear moisture wicking, fast drying fabric keeps you cool and dry. 4-way stretch knit moves better in every direction for enhanced mobility. Compression fit: superior next-to-skin fit with an ultra-tight, locked-in feel. High impact sports bra is best suited for boxing, running, aerobics and field sports. Pullover styling. Coated metal hook-and-eye closure at back. See Fitter's Comments below for hook count.