Calvin Klein Underwear Thong in Black. - size S (also in L, M, XS) Calvin Klein Underwear Thong in Black. - size S (also in L, M, XS) Self 1: 83% nylon 17% elastaneGusset: 100% cottonElastic Band: 54% nylon 34% poly 12% elastane. Made in Sri Lanka. Machine wash. Branded elastic waistband. Semi-sheer sheen finish fabric. Thong back. Item not sold as set. CKUD-WI227. QF6526. One of the most recognizable designer names in the world, Calvin Klein exudes signature sensuality and sexuality through classic styles and minimalist designs.