Invisible Underwear: Get these invisible underwear! Colours: Choose from a stylish black or discreet nude colour. One Size: One size fits sizes 6-14. Easy-fit: No side straps, simply slide in to place! Comfortable Material: C-string made from 61% Polyester and 39% Cotton. Fully self-adhesive. Multiple Use: Can be washed and worn multiple times. Women's Invisible Underwear | Black | Living Social