To use this cap, simply adjust the snapback at the back to fit your head comfortably. You can wear it for casual outings, sports events, or any outdoor activities. When it gets dirty, you can gently hand - wash it in cold water with mild detergent. Avoid using bleach or harsh chemicals as they may damage the fabric. After washing, let it air dry naturally. Do not put it in the dryer to prevent shrinkage or shape deformation.