No side seams for a completely smooth experience. Soft recycled nylon fabric with support that enhances your natural shape. Straps can criss cross in back. Bra Type: Bralette Features: Stretch Fabric, Adjustable Straps, Side Smoothing, Convertible Straps Closure Type: Pullover Head Support: Medium Support Fiber Content: 96% Nylon, 4% Spandex Lining Material: Spandex, Nylon Care: Machine Wash, Tumble Dry Material: Nylon Country of Origin: Imported