The #1 bra from Moving Comfort, the Fiona Sports Bra features front adjustable straps offer unsurpassed levels of comfort and a custom fit.Shell: 83% polyester/17% Lycra? spandex - Powerful stretch for fit and comfort. Interior Molded Bra Cups: 100% polyester for shaping, support and moisture transfer. Back Lining: 80% nylon/20% spandex Powermesh? - strong support that is breathable, with two-way stretch. Front Yoke Lining: 90% nylon/10% Lycra? spandex Powermesh? - strong breathable support with one-way stretch. Design lines offer great support and shaping. Plush-back, high modulus bottom band for firm support. Self-fabric binding around armholes, neckline and straps. Straps are stabilized for added support, lined with spacer fabric for comfort. Front adjustments allow a custom fit. Three rows of hook and eyes, with three adjustment positions, for a precise fit. Interior molded cups encapsulate breasts to provide shape and support. Front is one-way stretch to limit vertical movement.