Mons Royale - women's thongs These Mons Royale thongs fit perfectly and are popular with a lot of women. Thongs are made of quality merino material. Size chart MONS ROYALE - WOMEN PANTIES / THONGS SIZE HIP CIRCUMFERENCE (CM) XS 66-73 S 74-81 M 82-89 L 90-97 XL 98-114