Splits59 Allegra Sport Bra in White. - size S (also in ) Splits59 Allegra Sport Bra in White. - size S (also in ) 79% poly 21% spandex. Adjustable shoulder straps. Contrasting fabric panels. SPLR-WM119. A3016. High-performance is apart of the Splits59 brand DNA. The LA based line is full of innovative activewear for women that blends advanced fabrics with sleek silhouettes. With features like quick-dry sport performance fabrics, flat seams, fluff threads and plush elastics each piece is design to keep you looking fabulous and feeling great while going the extra mile.