I purchased a Class C cover from Amazon for my Class B+ Lexi 255GTS three weeks ago. It was made by Expedition. When I measured my Lexi, it was 26' 10" from tip to tip. I originally planned to order the 26'-29' cover but I emailed Expedition and they replied that the 23'-26' cover should fit. I was skeptical but they said I could exchange it for a longer cover if it was too short. I received the cover and it fit perfectly. I couldn't be happier...especially since I had an ADCO brand cover before and the Expedition is considerably more durable, heavier, and adjustable. Keep in mind that the Expedition installation instructions are somewhat lacking and you'll have to do some thinking to install it. I suggest you start from the passenger side front bumper, then the driver side bumper and work backwards. Have a tennis ball handy to put over the radio antenna as it will tear the cover.