Cloth swim diapers are made to be worn, washed, and worn again. After wearing, we suggestwashing, especially if your baby pooped in the diaper. To clean a soiled cloth swim diaper, remove as much solid matter from the diaper as you can, place it in a dry pail, wash on a warm cycle with detergent, and tumble dry low. You don’t need to soak cloth swim diapers.