I just bought the 13' Dallas Manufacturing kayak cover here
https://www.carid.com/canoe-kayak-covers/The kayak is inserted into the cover like you would enter a sleeping bag, then zip it up. The wind cannot blow it off. Says it will fit to 30" beam, which is the beam of the Yukon. Fits my Folbot Yukon perfectly. Comes in other sizes. Seems well made. You always wonder about the durability of the zipper. I'll just install velcro if the zipper fails. Tan is the only color that I could find. I wish it were darker to keep more of the sun from the deck.