Toss in the wash with cold water. Air dry. Boom.
Awesome bag
"I love this bag! Bought it to take to Europe on a 2 week trip! So perfect… holds a ton, but best is I got things on it and they wiped right off with a wet wipe! I now use it all the time! Only improvement could be to add an inside pocket. The one on outside is very handy, but would like a zip pocket on inside too."