HI 

So will need to order either the 4 XL size in nylon for the Enduro 12 or the 3 XL size for the Enduro 13 or 14

USA site.  https://riotkayaks.com/collections/cockpit-covers/products/beluga-nylon-eco-cockpit-cover

Canada site: https://riotkayaks.ca/collections/cockpit-covers/products/beluga-nylon-eco-cockpit-cover

Hope this helps,