NuBra Seamless Underwire Bra | A backless, strapless, seamless, self-adhesive bra from NuBra. The unique underwire design provides maximum support and cleavage without binding bra straps. Each bra is reusable, and adheres to the skin with silicone adhesive. Apply each side, then connect with the clasp in the middle. 30% polyester/30% polyurethane foam/40% silicone adhesive. Hand wash with mild soap and water. Made in the USA. Not recommended for women with sensitive skin.