THE NELSON MANDELA RULES 7 Clothing and bedding Rule 19 1. Every prisoner who is not allowed to wear his or her own clothing shall be provided with an outfit of clothing suitable for the climate and adequate to keep him or her in good health. Such clothing shall in no manner be degrading or humiliating. 2. All clothing shall be clean and kept in proper condition. Underclothing shall be changed and washed as often as necessary for the maintenance of hygiene. 3. In exceptional circumstances, whenever a prisoner is removed outside the prison for an authorized purpose, he or she shall be allowed to wear his or her own clothing or other inconspicuous clothing. Rule 20 If prisoners are allowed to wear their own clothing, arrangements shall be made on their admission to the prison to ensure that it shall be clean and fit for use. Rule 21 Every prisoner shall, in accordance with local or national standards, be provided with a separate bed and with separate and sufficient bedding which shall be clean when issued, kept in good order and changed often enough to ensure its cleanliness. Food Rule 22 1. Every prisoner shall be provided by the prison administration at the usual hours with food of nutritional value adequate for health and strength, of wholesome quality and well prepared and served. 2. Drinking water shall be available to every prisoner whenever he or she needs it. Exercise and sport Rule 23 1. Every prisoner who is not employed in outdoor work shall have at least one hour of suitable exercise in the open air daily if the weather permits.