Salewa Mountain Trainer GTX shoe Crampon compatability.

I'm looking for ideas on crampons that would fit on these shoes..... Sometimes I'm too lazy, or just really don't want to wear boots for a short section of approach snow.

Petzl flex lock bails in my opinion are the most narrow, and you'll probably have the best luck getting a pair of Irvis or vasak's to fit.

Another option is a very aggressive micro spike system, which for short easy snow will work fine.

I'll second Max here. If you're looking to deal with snow - as opposed to water ice - go with microspikes. Kahtoola's are the standard, but Hillsound just came out with a clone that has more spikes under your foot than the Kahtoolahs. Same price.