How often your coat will need re-proofing is relative to two variables; the conditions it is exposed to, and the frequency of use. Check garment regularly to ensure no dry areas where wax/re-proofing has worn away. Pay particular attention to areas such as shoulders, neck seams, pockets and creases. Do spong with cold water when soiled and brush off dirt. Do not wash with soap. Do not Machine Wash. Do not Dry Clean.