Washing and management method In the case of natural cotton, there may be slight shrinkage when washing. Only do hand wash in the warm water of approximately 30 degrees. When using the washer, please use a washing net with the warm water of approximately 40 degrees. Do not boil it. (Because this product did not have chemical finish, washing in high temperatures can shrink it). Please avoid mechanical drying or boiling in the washer. Please use neutral detergent and non-fluorescent detergent. Detergents for children are suitable for children"s clothing as well. Chlorinated or oxygenated detergents should not be used.