Safe Material - The invisible bra is made of soft polyester fabric and self-adhesive biological glue and will not irritate the skin. Breathable cloth and the silicone-free design in the middle of the cup provides nipple comfort all day. QUICKLY LIFT YOUR BREASTS: The lift up bra has good stickiness can provide strong support, can quickly lift your breasts, making your breasts look younger and get a sexy curve. 88% Polyamide, 12% Elastane Hand Wash Only seamless INVISIBLE and SEAMLESS:The invisible bra can provides a smooth look while holding and enhancing your shape. WASHABLE and REUSABLE:You should rinse the reusable nipple cover with clean water, and completely air-dried after each wash. The better you maintain it, the longer the life expectancy. APPLICABLE OCCASIONS: The strapless bra is suitable for off-shoulder, open-back, low-cut clothing. First choice for weddings, prom and other formal occasions.