Material : 100% Mulberry Silk 7 colors for choose: Black , White , Beige , Skin color , Pink , Purple , Red 4 sizes for choose: Size M: US Size S Original Waist : 54cm/21.3 inches Max Stretched Waist: 76cm/30 inches Size L: US Size M Original Waist : 58cm/22.8 inches Max Stretched Waist: 80cm/31.5 inches Size XL: US Size L Original Waist : 62cm/24.4 inches Max Stretched Waist: 84cm/33 inches Size XXL: US Size XL Original Waist : 66cm/26 inches Max Stretched Waist: 90cm/35.4 inches Pure color silk briefs , seamless The material is very soft and smooth , it’s good for your skin , and it’s very healthy When you try on this briefs , you will feel so relaxed Really a nice briefs for every female elegant If you don’t know which size is suitable for you , you can contact us and told me your waist , we will reply you in 24 hours , and help you choose a perfect size .