Lace Open Crotch Thong with Side Ribbon Lace Up from Seven " til Midnight. An added bonus on these lace boyshort wonders: open crotch and side lace-ups. Open crotch. Lace-up sides. 92% polyester. 8% spandex. Medium. Size: 6-10. Cup: B/C. Bust: 34"-36". Waist: 26"-28". Hip: 36"-38".