MATERIALS : Environmental & safety. Medical grade bio-adhesive, strong viscosity, high stability, washable, easy to use.FABRIC : The fabric is made of natural cotton fabric, and the lining is pure white memory sponge, which is more breathable, skin-friendly and comfortable. Zero burden & free breathing to the chest.DESIGN : Unlike ordinary nipple cover, this self-adhesive chest pad does not need to stick to the breast, so it does not cause airtight damage to the skin. Dressing is as comfortable as ordinary underwear, Thick below, thin above, creating a perfect chest.TECHNOLOGY : Extracted from various plants of Sesbania cannabina, Guar, flax, and fragrant beans.After dozens of extraction processes, high temperature extraction of natural vegetable gum. Non-toxic, odorless, transparent, soft.HOW-TO : Can be used in swimsuits, tube tops or even inside the bra,Put the glued side of the chest pad on the inner layer of the bra, the heart-shaped notch is up, adjust the position moderately, and the symmetry is good.