Nipple Cover: Our Nipple Covers Are Made Of Silicone, Which Is Soft Lightweight, allowing you to maintain a natural and comfortable feeling when using it, and will not cause discomfort even if worn for a long time Adhesive Cover: Cales Nipple Cover Is Sticky Enough To Keep In Place Until You'Re Ready To Take Them Off. And The Adhesive Is Easy To Remove Seamless Covers: They Gradually Become Thinner From The Middle To The Edge, Fit Closely To The Skin Without Awkward Contours, Without Being See-Through, To Wear With A Backless Dress, Bridesmaid Gown, Camisole Top, Or Bathing Suit Portable and easy to use: You can carry this product with you and put it in the bag compartment without taking up extra space, For Your Travel And Everyday Needs Washable and Reusable: After each use, just wash them with mild neutral soapy water, and let them air dry before using them again See less