Anyone use these minimalist winter boots? (Sole Runner Transition Vario)

These look interesting as a super flexible mukluk style shoe with insulation.
The issue would be how waterproof these are in wet snow.
Yeah, you couldn't do traction devices with these but I'm thinking just for snowshoeing.

http://www.sole-runner-shop.com/en/sole-runner-barefoot-shoe-transition-vario-m/a-300674/