Features: Curved underbust seam High neckline Seamless Edge Narrow racer back Details: Fabric: Butter (Nylon/Spandex) Light Support Level Description: The Curve Sports Bra is a light support bra with a curved underbust seam that’s sure to highlight your best features. It has a seamless edge, narrow racerback straps, and is made with our Butter fabric for a buttery, brushed feel that offers the best of compression and breathability.