REUSABLE & WASHABLE & HANDY- This reusable bra is designed to be small enough to fit in a handbag. They are waterproof and can be reused multiple times by gently hand washing and let air dry. Even though you washed them many times and they still work perfectly fine, will not lose their adhesive. Silicone pasties work best when applied to clean, dry skin that is free of deodorants, perfumes, lotions, or powders. These can be applied after the product is adhered to the skin.