Splits59 Ashby Rib Tank in Grey. - size M (also in S, XS) Splits59 Ashby Rib Tank in Grey. - size M (also in S, XS) 95% tencel 5% spandex. Racerback. Ribbed fabric. Made in USA. SPLR-WS27. 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.