Having skied with a DSLR and fallen on it, bruising myself badly (the camera was fine), I would go with something fairly flat. Really, a 35mm rangefinder is the way to go, like a Canonet or Hi-Matic. But if you really want a medium format with a meter, I don't know of much that would be acceptable beyond a Fuji 645 or a modern Bessa. I have had a couple old German 6x9 folders. They are fun, but I would not like the lens flare from uncoated lenses in snowy scenes; even with a lens hood, there will be significant flare from all the in-frame white stuff. The old shutters may not take to the cold and I worry a bit about folding and unfolding the bellows a lot in the cold. Potential for cracking. An issue with folders is the front standard getting out of parallel to the film plane, and this may contribute to reports of unsharpness. Actually, the best folder I ever had was a Kodak Tourist where the struts go across from one side of the body to the opposite side of the front standard and really brace everything nicely. I have not had condensation problems with any camera going to an outside pocket in the cold, as long as the pocket communicates with outside dry air. A humid inside pocket may be another story.Condensation has only been a problem for me coming into a warm indoor space with humidified air.