x2. I wash my HAWG after every 4 or 5 rides. It is 7 years old and is still going strong.I just throw the whole pack in the washer. Secure all the straps by cinching them down or wrapping them around the pack so they won't get caught up on anything. After it's been in there for a few minutes, you can get a brush and spot clean some of the more grimy areas, then throw it back in. After spin cycle, I just hang it to dry.