You won't go unnoticed in this big boob costume! This breast costume is made out of 100% polyester and consists of a poly-foam exterior to maintain its shape. The nipple portion is light pink, with a darker pink, fabric nub that actually has a squeaker inside! There is a loop to go around your neck for a secure fit, along with straps that tie the costume around your back. People will be honking your boob costume all night long!