BesTop 51785-15 Jeep Wrangler Upper Door Sliders - YJ / TJ / LJ - In Black Denim for use with OEM Bestop 51785-15 Brand New In Box In Stock Bestop is located in Louisville, Colorado not far from where it started. With more than 500 employees world-wide, Bestop manufactures a broad line of Soft Tops and Accessories for Jeep CJ and Wrangler, plus an expanding line of Truck Accessories. All Bestop-branded soft tops are designed and manufactured in North America. Bestop has a long history of ground-breaking new products for Jeep Wrangler. Introduced in 1987, the Bestop Supertop became the gold standard in replacement soft tops for Wrangler and CJ models. Just a few years ago, we created the Trektop NX which is the best-selling Wrangler soft top in the nation.