|Brooks Moving Comfort Fineform Contour Cup Sports Bra with J-Hook (350072). The convertible straps on this lightweight sports bra may be worn with rear straps hooked together with a J-hook or classic style, and are made with DriLayer fabric for moisture wicking comfort. Also, the straps, neckline, armholes, and back are bonded for chafe-free movement. Made of polyester, nylon and spandex. Wireless contour cups have light padding and mesh trim at neckline. Interior unicup design provides gives support, shape and no-show coverage. Tall center front provides coverage and containment. Soft, brushed bottom band stretches for flexible movement. Tall, seamed sides and back have covered elastic along edges for security. Bonded straps are adjustable at back with coated metal hardware. Chafe-free bonded seams. DriLayer performance fabric wicks moisture to keep skin dry and cool. Reflective Moving Comfort logo on right side at back. Coated metal hook-and-eye closure at back. See Fitter's Comments below for hook count. Ideal for running, training and cardio.