An apron is worn to just below knee-length, also to assist in the prevention of burns because of spillage. If hot liquid is spilled onto it, the apron can be quickly removed to minimize burns and scalds. Shoes and clogs are hard-wearing and with a steel-top cap to prevent injury from falling objects or knives. According to some hygiene regulations, jewelry is not allowed apart from wedding bands and religious jewelry. If wound dressings are required they should be blue—an unusual colour for foodstuffs—so that they are noticeable if they fall into food. Facial hair and longer hair are often required to be netted, or trimmed, for food safety. Bandages on the hands are usually covered with nylon gloves. Latex is not typically used for food preparation due to latex allergy.