Congrats on the new Globetrotter! They're beautiful!
This appears to be what your upholstery is. It's called "Hitch" and it's different from the "Ultra leather" in the other Airstream's:
Another site with some more info on Hitch:
Here's the quote from the Airstream website Globetrotter (Design) page online:
"The multi-award-winning European coated fabric used for the Globetrotter’s upholstery, HITCH™, features a fine woven texture, subtle metallic tip print, and distinctive two-tone feel. HITCH not only gives the furniture a sleek, modern look – it’s also incredibly durable and stain resistant. So your furniture always remains beautiful and inviting."
It seems from reading this product web page for the Hitch upholstery, though, that it is very durable and stain resistant. Not a direct comparison but I can say this about my "Sandpiper" (white) ultra leather is it cleans up nicely and stains and scuffs come right out with a little soapy water and scubbing. In my opinion I think your Hitch will clean up nicely, too. The website above specifically says it's used in the RV industry (among others).