If youre wearing a dress with a fitted bodice and a backless or sheer back, you can opt for stick on bras or nipple covers, but I recommend using detachable cups for better support. Here are two easy What are good stick on bra recommendations for a wedding dress? Amazon.com: Niidor B Cup Adhesive Silicone Bra & Fabric Bra Strapless Sticky Invisible Push up for Backless Dress with Nipple Covers : Clothing, Shoes & Jewelry U Plunge Push Up Bra Set, Foam Cups with Clear Side Wings And Self * Covers * Comfortable Seamless, Ideal for * Dai Bye Bra push up reusable stick on cups in beige ASOS The Best Backless Bras for Every Cup Size PureWow