Contour underwire cups have breathable light padding. Sewn-on elastic at neck edge maintains fit and helps reduce bounce. Covered elastic underband keeps fit close. Sides and back are lined with breathable mesh and have sewn-on elastic at top edge with a covered elastic underband. Front straps are padded, with exposed elastic at back that adjusts with plastic hardware. Plastic J-hook creates a racerback for fuller range of motion. Lengthen straps for this style. Wicking properties remove moisture from the surface of your skin and the fabric to keep you dry. Soft-backed hook-and-eye closure at back with coated metal hardware