Tween Bee Microfiber Full Coverage Bra (2173). Designed for girls 9 to 13, a perfectly comfortable bra that's specifically designed to be a first bra for tweens (young girls who are beginning to develop). Made of nylon/spandex with polyester lining. Contour/t-shirt wireless cups are lightly padded for coverage, with soft interiors. Cups are smooth and seamless, providing modesty and a smooth look under knit tops. Sewn-on elastic underband provides light support. Center panel has a V-shape. Sleek, stretch microfiber fabric sides have encased elastic at top, sewn-on elastic at bottom for fit. Seamed sides lie flat under clothing. Exposed elastic, center pull straps are dual band at front and single band at back. Center-pull straps adjust at back with clear plastic hardware. Coated metal hook-and-eye closure at back. Please see Fitter's Comments for hook count. Available in AA through B cup sizes.