Tulle is a lightweight, very fine netting, which is often starched. It can be made of various fibres, including silk, nylon, and rayon. Tulle is most commonly used for veils, gowns (particularly wedding gowns), and ballet tutus. Tulle comes in a wide array of colours and is often used as an accent, to create a lacy, floating look.
Tulle may also be used in underskirts or petticoats to create a stiff belled shape. Gowns are often puffed out with the use of several layers of stiff tulle.
Tulle has many non-clothing usages too, including protecting vulnerable plants by keep insects out, and it can also be used to create an insect tent over a bed to protect sleepers. It is frequently used to wrap up party favors and gifts, especially for weddings and baby showers.