New Wrangler spare tire cover for 33-35" diameter The marine grade vinyl coated fabrics resist fading Measure total diameter of tire on wheel, and tread width at widest point and order the closest matching size Premium custom-fit spare tire cover made from the same color-matching fabric as the Sierra Offroad soft top. This one is Sandalwood Sailcloth and is available in four sizes. Designed to fit typical tire sizes on Wrangler, Trucks or SUV's. One-year limited warranty. This upgraded material is Sailcloth Vinyl. Sailcloth is an original material for the 2007-2013 JK series Wrangler with the "sail grain" pattern on the exterior. Sailcloth has superior performance characteristics compared to either Denim or Diamond and will last considerably longer. Sailcloth also has enhanced acoustic properties that lower the noise levels at highway speeds. When ordering measure total diameter of tire on wheel, and tread width at widest point and order the closest matching size.