Daypacks and laptop backpacks, hydration and hip packs, ski and snowboard roller bags, duffels and travel luggage — from Dakine, Thule, Mountainsmith, Ogio, Oakley, Athalon and Samsonite.
On volume: 20–30L handles a day of class or a day on the hill, 30–40L covers an overnight or a carry-on, and roller bags and duffels take over above 60L for a full ski or bike kit.