A.Che Ruched Back Tie Side Bikini Bottom Size XSA. Che Ruched Back Tie Side Bikini Bottom Size XS A most charming bikini bottom in a handsome shade of blue, featuring ruched detailing at the back and delightfully adjustable tie sides. The construction of nylon and Lycra ensures both comfort and elegance for the discerning lady's aquatic pursuits. New with tags, this piece awaits its fortunate owner with all the promise of summer pleasures. Color: Blue Condition: New With Tags Brand: A. Che Size: XS