I have the 50cm birkin W/toile lining and it weighs either 4.5 or 5.4 (can't remember) lbs. But it weights less than the HAC 50 because of the toile. It is fantastic for the car, and since we drive a lot on weekends it is the most used bag I own I guess, but I doubt I will ever fly with it again because is so heavy packed and I protect it like a...well...birkin. It's a chore on top of traveling (which is a chore). Packed with a laptop, jewelry, stuff you want to carry with you, it gets
so heavy real quick. Inching through security (like Pam) I wanted to shove the bag along with my foot, but ended up bending over like twenty or so times.
ugh..will..not..scuff..leather. Overhead compartments nightmare (could
rip Leather,
must use sleeper). I don't know how the HAC fits into overheads, but I had to contort my flexi birkin in first class so that is something to think about.
The airlines have no problem these days bumping luggage down to check in status. Sorry, I don't mean to be a downer, but really think about it and maybe take a test run with a XL longchamp or something packed to 20lb and see if it works for you. I really love my bag
in the car