Haha, well I have a large "boot bag" although I rarely travel with it (except for a weekend trip by car), it's mostly just where I store my ski clothes. It's roughly cube-shaped, and the boots lie on their side in a separate zippered compartment on the bottom, and then there's a large space for your clothing on top. You could easily fit another pair of boots here. But I don't know if you could get away with it being counted as a boot bag as described above and only considered a checked bags in conjunction with the ski bag. I haven't owned my own skis/poles for more than a decade, so haven't had to deal with this personally in a long time.