Shop Women's Vintage Blue Pink size 12 Bikinis at a discounted price at Poshmark. Description: Adorable 80s tropical themed bikini top bra. Women's size 12. Stretchy. Great vintage condition. Note there is some wear on the inner elastic on one of the straps (see image) it's kind of folded but straightens out once it's on.. Sold by oonatunu. Fast delivery, full service customer support.