Convenience meets comfort in these no-show nipple covers. Ready for any occasion, they're sweatproof, waterproof, and made with 100% medical-grade silicone, so they'll stay secure all night. From NOOD: Sustainable, innovative solutionwear that delivers confidence and empowering support for every occasion. 3 inch is best for A-C, 4 inch is best for C-D+ Reusable 50 - 100 times with proper care Invisible SkinFinish™ single-layer matte silicone with precision thin tapered edges Skin-safe German medical-grade adhesive Sweatproof and waterproof Sustainable packaging (FSC® paper, 100% Recyclable) Must apply to completely dry skin (no oils, lotions, or perfumes) Hand wash Imported