I believe that my roller derby gear bag fell out of my car in Colby KS, near I70. We had pulled in to take a picture of the Jesus in the wheat field sign, and we think it tumbled out then. We did not notice it was missing until we got to Salina.
It is a black backpack with pink on it, and it says "BOOM" on the front. Inside is knee pads, elbow pads, a custom painted wonder woman helmet, and a mouth guard.