CamelBak's Snowblast Hydration Pack expands, so you can pack enough for an all-day mountain assault, or just bring enough for a few hours. The two-liter water reservoir helps keep you hydrated, and CamelBak's leak-proof bite valve won't drip water all over your jacket. Strap your snowboard vertically onto the Snowblast, and use the helmet carry loop to keep your brain-bucket out of the way as you hike up the hill. Expand the Snowblast Backpack to fit extra layers and snacks, or keep it low-profile for a half-day adventure.