Splits59 Ashby Rib Racerback Tank in White. - size XS (also in L,M,S) Splits59 Ashby Rib Racerback Tank in White. - size XS (also in L,M,S) 95% tencel 5% spandex. Lightweight ribbed fabric. Made in USA. SPLR-WS35. B2006B. 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.