prAna Women's Sabin T-Back Top 93% Supplex Nylon/7% Lycra Spandex Imported "Chakara performance knit Popular racerback style with great support and updated styling Shirring front detail Solid: 93% Supplex Nylon/7% Lycra Spandex; Heathers: 48% Nylon/45% Polyester/7% Spandex