This is ADCO's Class B cover on the Travato.
It fits OK on the sides, top and back. It's a little poochy in front and I take up the extra with some small spring clamps, the ones with the orange vinyl handles. You can tie the cover down with the included straps and rope tight enough so that the wind won't whip it. Like all covers, it's a bit fiddly to get on and you must remove (unscrew) both radio antennas. Depending on where the rear antenna decides to separate, you may or may not have to protect the cover from a piercing. No big deal.
When the sun kills this one in two or three years, hopefully someone will have come up with a Promaster specific cover. I rate this cover a B.
Hope this helps,