Chase Mika

I'm looking to get a pair of boots for my working dog. Anyone have input on which ones have worked out best? The only ones I've really seen are the Muttluks and Roughwear, but I know there must be others out there. My dog is patrol and explosives trained.....the only time I'd see using them on patrol is for a situation where I was having him walk over broken glass to get into a building. Explosives....where there's potential for chemicals/hazardous substances on the ground.