So, in this post, we’re covering how to wash a backpack and cleaning instructions that we find helpful for those other frequently-used pieces of gear (down jackets, shoes, laptops, and phones). Important Note: These cleaning tips are things we’ve found to work for us and should work for most gear. Soak the backpack in lukewarm water with a small amount of mild soap (a little soap goes a long way). Simply rinse it with clean water until there are no more bubbles on the bag, It may take a few cycles. Keep It CleanSo there you have it—how to wash a backpack and some cleaning tips we find useful to maintain our frequently-used gear.