Calvin Klein Thong. Modern Thong by Calvin Klein Underwear> Ladies thong> Wide elasticated waistband> Flat lock seams> Tonal stitching> Lightweight> Breathable> Calvin Klein branding> Body: 53% cotton, 35% modal, 12% elastane> Waistband: 67% nylon, 23% polyester, 10% elastane> Gusset lining: 100% cotton> Machine washable at 30 degrees