yhprum1720 speaks the truth, we thought of everything. In my Boot Trekker I stuff boots, protected goggles, 2 pair gloves, two shells, pants, base layers, phone stuff, snacks, tune tools, and other stuff I'm forgetting. Everything minus your shred sticks. The intuitive, compartmentalized approach prevents forgetfulness. No more showing up at the hill pantsless. We've all been there. Like Dr. Steve Brule said, check it out!
http://www.kulkea.com/product/the-boot-trekker-ski-boot-backpack/