are you talking about the s400 ish models? or the s40 ish models
i can't really speak for the s400 ish models but i have an s50 and i'm pretty sure it will take a beating in the snow and still take sweet pictures.
i don't know if its something you wanna put in your pocket though, i'd put it in at least padded fanny pack or a small backpack cause in it'd probably feel uncomfortable in your pocket.