No one yet made this clear. "Bronco" is a Brand for Ford ("family" in Ford-speak) comprised of two different vehicles, the Bronco Sport and the Bronco. The Bronco Sport is based on another Ford smaller crossover SUV and is only available as a fixed-roof, fixed-door vehicle.
The Bronco is analogous to the Jeep Wrangler and has a removable roof and doors. The Bronco is available in 7 or so trims. The body is offered in both 2-door and 4-door configurations.
2-door versions come only with a factory hard top.
4-door versions are offered from the factory with either a hard top or soft top. The 4-door comes standard with a soft top, the hard top is an extra-cost option.
For the 4-door, there is a "dual top" factory option to have both the hard top and soft top and the vehicle is delivered with the hard top installed, with the soft top shipped separately. Lastly, Ford offers a second version of the soft top in a twill fabric (vs. the standard cloth fabric). The twill soft top is an option and is manufactured by the company Bestop.
The 2-door has an option to buy a twill soft top as an accessory from Ford, which is manufactured by Bestop. You can also buy the Bestop 2-door top directly from Bestop at a slightly lower price.
Bestop also sells a twill fabric softop for the 4-door (if you didn't order the dual top option), but is not the factory fabric soft top that Ford uses when the Bronco is ordered as a softop only version.
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