Material. Cup / Crotch: 100% Pure Silk. Body Fabric: Silk-Cotton Blend (78% Organic Pima Cotton, 22% Silk). Details. Simple, flattering, and super comfy this full brief is perfect for everyday wear. Crafted from the finest Pima cotton for supreme comfort and an unmatched fit. Pima cotton tends to be gentler than regular cotton, making it a great option for people with sensitive skin concerns. A double leg cuff and inner gusset cut from 100% Silk. No exposed elastic touching the skin