The Gary Winter Covers offer the best value for the money being spent. Each cover features a triple ply construction. The center layer is carbon black for protection for the sun's ultra violet rays. The cover features rip-stop material to minimize tear out.
All round covers have poly carbonate grommets with a reinforced polypropylene hem cord to minimize grommet tear out. All round and oval covers come 4' oversized and include the plastic coated aircraft cable and turnbuckle (winch).
The rectangular covers are 5' oversized and include water log straps and grommets. However, there is no cable included with the rectangular covers.
A 4 Star Winter Cover is a little more expensive but is much thicker than the 3 Star and it has a 10 Season Warranty with 2 Seasons full replacement.