There are many kinds of women's snow pants, such as wider styles for snowboarding or skiing, or the tailored fit that is particularly well-suited for skiing. Furthermore, there are some differences in women's pants material-wise, like hardshell (waterproof and breathable, but unlined) and softshell (very breathable and with a bit of stretch, but slightly less waterproof).
Of course, you may have some specific wishes regarding snow pants: reinforced trouser legs to protect you from the edges of your skis, pockets with waterproof YKK zippers, detachable suspenders, an adjustable waistband or moulded knees.
Different kinds of trousers
Specifically for snowboarding, with a somewhat lower crotch for a wider stance and a more relaxed fit. Or specifically for skiing, with reinforcements at the bottom of the legs to protect against the steel edges of the skis, a slightly less wide fit and often with (detachable) braces. And of course there are many great brands to choose from: Tenson, Lasse Kjus, The North Face, Spyder, Atomic, Falcon, Peak Performance, Protest, Salomon, Maier, Odlo, Quicksilver, O'Neil, Picture, Brunotti, Burton, DC, Campagnolo, Fire + Ice, 686, Analog, Toni Sailer, Nikita, Bogner, Roxy, Icepeak, Goldbergh, Luhta, Under Armour and many more.
Something for everyone
For every winter sportsman there is a pair of trousers. For all circumstances, for every activity, there is a pair of trousers that not only has the functionality you desire, but also reflects your image.
And, of course, there are the specific wishes you might have for a pair of trousers: reinforced legs to protect against the steel edges of your skis, pockets with waterproof YKK zips, removable braces, adjustable waistband, pre-shaped knees.