Ah, cool. I actually have an old liner too.
Sizing seems a bit funny. I went to RMC and they sized me a small on the parka, which I didn't love the fit. I went to a store in Osaka that didn't have any of the Buzz ones in stock but the shop owner thought I was a Large which is my usual Buzz size. He was saying the sizes for the Buzz jacket is arm length and not size, as they are all one size and the arm length is the difference.