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 Long Sleeve Backless Dresses Shop at ASOS The most asked question! What to wear under backless dresses?, So, I wear these nipple pasties from @butt_chique and also their shapewear, Its soo good ! You can see the difference yourself , You Open Back See Through Dress Etsy