Worst smell of my life story...
I attended a Family Fun Ride in Georgia at Aonia MX Park. I had not ridden in close to 8 months at this time and my gear had been in a gear bag the entire time. I don't remember washing it, but that was not the problem.
Over the winter we had a mouse problem. I had it fixed by January but by Spring there were still remnants of things left behind.
One of those things were a completely urine filled gear bag. I didn't notice until I pulled it out at the park and started to get ready.
I didn't wear the chest protector. It was on top and got the worst of it. But the rest smelled bad as well.
I did not let that stop me. I rode on! And I was able to ride alone most of the time b/c as soon as anyone got close they backed off or sped quickly and far ahead of me.