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Bestop and the Industrial History of the Jeep Soft Top

Bestop grew from replacement Jeep covers into a supplier that could design, tool, manufacture, and deliver complete folding-roof systems, while remaining visible to the same owners as an aftermarket brand.

Source-backed history

Direct answer: Bestop matters to Jeep history because it sits on both sides of the vehicle: as a consumer-facing aftermarket company and, beginning with the Wrangler YJ era, as an original-equipment soft-top supplier. Bestop dates its founding by Tom Bradley to 1954, and the federal trademark record lists October 1, 1954 as first commercial use of the BESTOP mark. A 1966-filed patent and a 1968 brochure document early work on faster, better-sealed Jeep-top attachment. The Wrangler program then moved Bestop into complete-system engineering, including fabric, frames, latches, windows, and vehicle integration. Since 2015, a buy-and-build ownership strategy has also made Bestop the center of a wider accessories portfolio, but those acquired brands retain histories of their own.

On this page

  1. The 1954 date has a paper trail
  2. A soft top is an attachment system
  3. Open air became a designed product category
  4. The YJ changed Bestop as much as it changed Jeep
  5. The Supertop date stays attributed for now
  6. The LJ roof shows supplier engineering at work
  7. Ownership changed the scale of the story
  8. Why this is industrial history
  9. What remains open
  10. Timeline
  11. Sources and research trail

Soft-top systems, 1954-present

The cover became a vehicle system

What began as replacement weather protection grew into coordinated fabric, structure, closures, sealing, and assembly-plant delivery.

Replacement coverFabric weather protection for open Jeeps
Faster attachmentFlexible windshield channel and improved sealing
Open-air formatA top designed around shade without full enclosure
Complete systemYJ factory supply and launch-year fastening engineering
Vehicle programA dedicated roof for the longer Wrangler Unlimited
Platform portfolioReplacement, licensed, and powered roof applications
Integrated roof anatomyFit, weather, motion, and production
  1. 01FabricCut, tension, finish
  2. 02Front channelWindshield attachment
  3. 03Bows and frameShape and folding motion
  4. 04WindowsVisibility and removal
  5. 05Door interfaceSurrounds and closure
  6. 06Rear interfaceTailgate access and retention
  7. 07Seals and latchesWater, wind, and tolerance
  8. 08Vehicle deliveryValidation, packaging, assembly

Original editorial diagram based on patents, period literature, and attributed supplier accounts. It is not a product drawing or installation guide.

The 1954 date has a paper trail

Bestop tells its origin as Tom Bradley sewing Jeep covers in a small Boulder upholstery shop in 1954. A modern company biography is not enough by itself to establish every founding detail, but the trademark record adds an independent documentary anchor: the BESTOP registration, filed in 1968 for convertible fabric tops for open four-wheel-drive utility vehicles, claims first use and first use in commerce on October 1, 1954. That record supports the date and product category. It does not independently prove every detail about Bradley, the shop, or the seven-person schoolhouse operation, so those elements remain attributed to Bestop.

A soft top is an attachment system

The first strong engineering source is James J. Stengel’s patent filed in September 1966 and published in 1968. It describes the slow process of threading or stuffing a fabric edge into a Jeep windshield channel, then proposes a flexible plastic channel sewn to the cloth so the top can hook into place more quickly and form a tighter seal. A surviving May 1968 Bestop brochure uses the same Boulder post-office-box address printed in the patent. Together, the patent and period literature move the story from company memory into documented product development.

Open air became a designed product category

A second Stengel design filing, made in 1978 and issued to Bestop Manufacturing Company in 1981, covers an open-side top for Jeeps: the form later associated with the Bikini name. The historical importance is not simply who used a catchy product term first. Bestop was dividing the old all-or-nothing canvas enclosure into different open-air configurations, turning shade, weather protection, doors, and full enclosure into products an owner could choose separately.

The YJ changed Bestop as much as it changed Jeep

Bestop and transaction records place the company’s factory Wrangler supply relationship in 1986. In a 2026 interview with The Drive, Bestop engineer Rick Troeger described the YJ contract as the company’s first tier-one OEM program: Bestop supplied the cut-and-sew work and much of the metal frame and hardware, then shipped complete systems to the assembly plant. That distinction matters. The company was no longer only reproducing weather protection for an existing Jeep; it was helping design, tool, manufacture, and validate a roof as part of a new vehicle.

The Supertop date stays attributed for now

Bestop says it introduced the Supertop in 1987, pairing a fold-back frame with BeltRail attachment and an integrated replacement-top system. A Bestop patent filed on February 26, 1987 independently documents active work on a tongue-and-groove fabric-panel attachment intended to replace snaps and simplify fastening around a Jeep-size vehicle. That is strong period evidence for Bestop’s fastening-system engineering in the claimed launch year, but the patent does not name Supertop. No dated 1987 launch advertisement or catalog has yet been verified, so the exact product date remains Bestop’s claim until that artifact is found.

The LJ roof shows supplier engineering at work

The 2004-2006 Wrangler Unlimited is a useful case because its longer passenger opening required a unique folding roof at relatively low volume. Bestop staff told The Drive that a small group developed a workable approach during an informal Saturday shop session, then moved it through the formal design process and into Toledo production. The account is valuable oral history from named participants, not an independently preserved engineering file. It shows the kind of quiet supplier work that disappears when Jeep history is told only through vehicle badges and press releases.

Ownership changed the scale of the story

Magna purchased Bestop in 1996. In 2015, Kinderhook and Magna formed a new joint venture around the company and openly described a consolidation strategy for the Jeep aftermarket. The resulting acquisitions expanded the group into lighting, security storage, seats, tie-downs, truck caps, power distribution, aluminum armor, and other categories. That portfolio should not be narrated as if Bestop invented every product. Baja Designs, Tuffy, PRP, Softopper, sPOD, Aluminess, and the other companies each arrived with founders, employees, products, and customers predating their acquisition.

Why this is industrial history

A Jeep soft top appears simple only when the manufacturing system is invisible. Fabric selection, cutting, stitching, clear-window welding, zippers, rails, bows, latches, seals, door surrounds, tailgate interfaces, noise targets, water management, fit tolerance, packaging, replacement parts, and assembly-plant delivery all meet in the finished roof. Bestop’s unusual position in both OE and aftermarket channels makes it a way to study how that hidden work moved from replacement canvas to integrated vehicle system.

What remains open

The highest-value missing source is still a dated 1987 Supertop launch catalog or advertisement. Publicly accessible 1986-1988 Popular Mechanics issues and public catalog results were searched without locating one. The Bradley-to-Stengel ownership transition, the reported 1981 sale to Wynn, and the BestopDualmatic period also need corporate or period trade evidence before they become firm timeline claims. Factory purchase orders, drawings, validation reports, supplier awards, and Jeep parts records could further bound the YJ, TJ, LJ, JK, and JL programs. These are research targets, not reasons to blur company claims into established fact.

Explore the evidence

Read the category history of Jeep soft tops
Read how the four-door JK changed aftermarket expectations
Read the RubiTrux LJ and turnkey Jeep history

Timeline

  1. Bestop says Tom Bradley begins making Jeep tops from a Boulder upholstery shop; the later federal trademark record claims first use of BESTOP in commerce on October 1.
  2. James J. Stengel files a patent for a flexible channel that speeds attachment and improves sealing at the windshield of a Jeep-type utility vehicle.
  3. The Stengel patent is published in October, while a surviving May Bestop brochure documents soft tops and related Jeep equipment from the same Boulder post-office-box address.
  4. Stengel files a design patent for an open-side Jeep top; it is assigned to Bestop Manufacturing Company and issued in 1981.
  5. Bestop enters the original-equipment tier with the Wrangler YJ soft-top program, supplying cut-and-sew work and much of the supporting frame and hardware.
  6. Bestop dates the Supertop introduction to 1987. The date remains company-attributed until a dated launch catalog or advertisement is located.
  7. Magna purchases Bestop, which remains an operating subsidiary until the 2015 transaction.
  8. Bestop engineers the factory folding top for the long-wheelbase Wrangler Unlimited, informally known as the LJ; the surviving account is a 2026 oral history from Bestop staff.
  9. Kinderhook and Magna form a joint venture around Bestop, explicitly describing an acquisition-led Jeep-aftermarket strategy.
  10. The portfolio expands through acquisitions including Baja Designs, Tuffy, PRP Seats, BullRing, Softopper, MGP Caliper Covers, sPOD, and Aluminess.
  11. Jeep and Bestop announce official Jeep-licensed replacement soft tops for Wrangler JK after more than 35 years of factory-supply work.
  12. Bestop acquires myTop and launches the power-actuated eTop line for Jeep and Bronco applications.

Sources and research trail

This article cites 13 public records, period publications, organizer histories, and other identified sources. External links open the underlying evidence.

Corrections and updates

This page is part of a living research project. Substantive corrections are recorded with a date and source. Submit or review a correction.