Nylon does not hold up in the sun. UV inhibitors applied to nylon wear off and need to be reapplied. Kennon chooses to use only the best material that is proven and warranted to withstand the sun for a minimum of 5 years. Some covers are made from vinyl or materials which contain plasticizers. Never should such a cover be used against the plexiglass because plasticizers actually change the chemical composition of the plexiglass and cause crazing of the windows.
Some manufacturers use a flannel cotton lining or other fuzzy lining.
Kennon builds a pocket for every door handle or latch. Fit is everything when building a safe cover. The scalloped design makes the cover fit snugly against the plane. An entry flap is built into every cover to allow you to get into the plane without taking off the cover. Both straps have quick release fasteners on both sides of the aircraft so the straps can be adjusted from either side.