Whatever you carry your stuff in, do not be an optimist while doing a turn. The airplane will break and you will smell.
While I'm here, where do you put all your previous airline and military stickers on a backpack? My folks bought me an expensive wheeled chart case for X-Mas 40 years ago, not only does it double as a "green" Publix grocery bag on weekends, but when I retire (at 67) then I'll obviously need it for my weekly dispensary visits. I'm throwing out pearls here guys.