Don't make your board pants do everything.
On days when your heaviest snowboarding pants still aren't warm enough, and a lightweight base layer doesn't add much by the way of insulation, turn to the Burton Expedition Women's Pants to keep you warm and riding.
Constructed of from the 360-gauge Dryride Ultrawick material, these pants provide excellent insulation against the cold. Additionally, the fabric is moisture-wicking, meaning that as your body heats up from shredding for hours on end, moisture is pulled away from your skin. An antimicrobial treatment means that you won't be smelly at the après board get together.