How do you clean Bearpaw sand boots?

I got them a while ago but they got dirty too easily so I need to know how to clean them. Thanks!
I got them a while ago but they got dirty too easily so I need to know how to clean them from the inside and outside. Also, how would you get a bad smell out? THANKS!!! Best answer=10 points

Dam sponge and a little bit of naPPY SAN AND WIPE OFF WITH CLEAN DAMP SPONGE/TOWEL.