Up to zero feel, Zero leaks. Infinity flexfoam. Feels like nothing, protects like nothing else. Bendable, breathable, responsive. Super absorbent poles. Our driest breathable top layer. Form fitting grooves. Wrapper collection. Always My Fit: Panty Size: XS; S: 1 light. M;L: 2 moderate. M; L; XL+: 3 heavy. XS; S; M: 4 moderate. M; L; XL+: 5 moderate. Great for day. Great for night. Skin Health Alliance endorsed.