Hair nets are used in cosmetic tattoo procedures to hold back the hair of the client and to create a safer and cleaner environment. They are also important to prevent contamination from the hair. Hair nets like these are often called "crimped berets" or "bouffant caps" and are made from fully disposable double-reinforced non-woven fabric. They are one size fits all, producing a good fit for all heads, and can stretch to 45cm in length. The disposable non-woven fabric is ventilated and breathable and each pack contains 100 hair nets.