You should avoid cleaning your deck bag in the washing machine or drying it in the dryer since the heat may damage your bag. You won't need machine cleaning for your deck bags most times since their design keeps them from getting too dirty. Handwashing your deck bag is easy; you only need water, detergent, and a soft brush, and wash gently to get rid of the dirt. Dry your bag outside, preferably in the sun, and store it properly until your next trip.