The updated prAna Sabin T-Back Top features the same quick-drying and shape-retaining chakara performance fabric you've come to love, with new styling. A gathered front, ventilated back, and updated racerback look amazing and improve performance. Interior shelf bra with removable modesty cups. Chakara performance knit. Popular racerback style with great support and updated styling. Shirring front detail. Back vent opening. Interior shelf bra with removable modesty cups. Fitted. Solid: 93% Supplex Nylon and 7% Lycra Spandex. Heathers: 48% Nylon, 45% Polyester and 7% Spandex. Material: Supplex Nylon, Lycra Spandex, Polyester.