I carried the freight bag from t* to home on my back, strapped to my mess bag. It was during the strike so I proved that the MTA is totally usesless to me, but my back did hurt when I got home cuz of the headwind making the case like a anti-spoiler.
The freight bag will hold up to quite a bit of abuse. A little of the plastic was broken on the trip home, because f***ing delta people are idiots, but the bike was fine. I crammed a lot of stuff into that bag and nothing was scratched or dented.