The Aegis was actually a lot bigger than I had expected. (Which is a good thing) it fit my Hori HRAP with about a fist gap left inside the main compartment, and even more room with my TE-S Chun Li stick. (Which could cause it to move around while traveling) on the flip side I use this bag for other things as well such as carrying art supply's, laptop, camera, camera equipment, and even clothes. This would serve as a really good carry on when traveling light. If you're on the fence I'd say go ahead and make the purchase you won't be disappointed. Use it for your stick and any other assesories or traveling with and without stick. Although I would imagine it'd be good for school, I feel the size maybe over kill in that situation.
This review is quite disorganized and all over the place but I hope it helps in some way!