Only tried on once; no signs of wear or tear! The most padded insert on the market. The go-to for that wow factor. Instantly boost up to 2 cup sizes. Recommended for tops with structure in the chest area. Triangular-shaped, best for low v-cut tops Boosts up to 2 cup sizes Double-sided adhesive for extra security Sweat and water-resistant No sewing required and interchangeable between outfits Insert stays put and keeps clothing in place