Lululemon Ta Ta Tamer convertible sports bra. Removable cups. Can be racerback or traditional. Wide hook and eye closure in back. Some light wear. Size was only on rip tag and it’s been removed, but it fits like a medium. I wear a 36C and it fits me on the largest setting, so I believe it’s around a 34C. Band measures approx. 15” laying flat on largest setting.