Brooks Dare Racerback 2.0 DriLayer Sports Bra (350085). The high impact Brooks Dare Racerback 2.0 DriLayer Sports Bra 350085 has wire-free, padded t-shirt cups with encapsulation for bounce control and adjustable straps with hook closures for a locked-in fit. The manufacturer recommends this as a replacement for the Juno or UpHold Crossback sports bras. Brooks' Dare Racerback 2.0 DriLayer Sports Bra is made of nylon/spandex.