We like the old way, so, every Bestop product we sell is tax-free. On this page you will find our wide selection of Bestop Tops and Doors for 2007-2018 Jeep JK Wranglers. Bestop was found in 1964 right here in Boulder, Colorado, just a short distance from JeepBolts. Over the years Bestop has rightfully earned a reputation as one of the most well known names in the industry. All of us here at JeepBolts, will only buy Bestop Tops for our Jeeps. We get asked a lot what the difference between Black Diamond and Premium Black Twill is. While Black Diamond is 28 oz fabric, Premium Black Twill is top-of-the-line 30-oz. triple-layer acrylic twill fabric. The Black Twill tends to last longer than the Black Diamond because of the slightly more durable acrylic constructions. Should you have any questions which top is right for you, don't hesitate to contact us.