This pack rules. It has so many great features, and even the size small/medium is amazingly roomy. For a day of back country touring or snowboarding, I can fit an extra (puffy) jacket, goggles, lunch, a heavy duty space blanket, water reservoir, miscellaneous stuff like maps, headlamp, first aid kit, camera... and still have room to stow more layers of clothing as I peel them off. It's so comfortable and well-thought out. It's the perfect day pack for heading up to the snow.
NOTE: Backcountry.com's description above is erroneous regarding a helmet pocket. It is the Switch 26 that has a stretchy helmet pocket, not this one.