The idea behind midriff flossing (given this moniker as the the strings that are wrapped several times around your waist resemble a piece of dental floss) is quite straight forward: Strings are attached to a crop top, cardigan, skirt, trousers or even an open-waisted dress and criss-cross across the waist as many times as one likes. Whether you prefer a minimal approach with one string or a ‘more is more’ look with plenty wrapped around, the beauty is in its versatility.