Snow is usually a lot softer than dirt. Might be worth a try, but I can't think of anything that offers decent protection that I'd actually wear.
For me I wear the normal gear (boots, knee guards, chest protector, pants, jersey, gloves, helmet, goggles) but I'd like to try Asterisk Cell knee braces and the Leatt Brace but unfortunately they're really expensive.
I am looking at some type of additional lower back/sacrum/tailbone protection, since I now have a problem in this area. Some of the snowboard padded shorts look decent, as those guys spend a lot of time on their a$$.
Skidad,
Thank you, thats what I had in mind. A level of protection higher than the 1/4" foam pad in the Moose riding shorts.