NWOT Free People Movement Swerve Bra. Size Small. Your new go-to bra for all your workouts, this square neck style features a compressive fit that holds you in as you move and a fun cutout back for a breathable and fashionable accent. Pull-over style u-back with ruching stretch fit. 11% Spandex,89% Polyester,Lining: 94% Polyester, 6% Spandex. Color: gray.