I have two of these cases, and only need one.
The one that I am selling is brand new and unused, still in box.
I am currently using one of these for my own XH-A1 and can thoroughly recommend it. The case is very well constructed, and holds the camera securely, with a foam footprint to match the camera. There is also plenty of space for accessories, with adjustable compartment sizing in the base.
The dimensions of the case (17.5"x13.5"x10.25") are said to conform to airline handbaggage allowances.
They retail at Jessops for £400, so sensible offers only please, via private message.
More info here:
Canon Video System Hard Case HC-4200 for XH-A1 - Jessops