The Jeep Wrangler JL 2018-2021 Extreme Side Skirts are aftermarket accessories designed to enhance the aesthetics and functionality of the vehicle. Typically made from durable materials like ABS plastic or fiberglass, these side skirts are custom-fit for the Jeep Wrangler JL's body contours. They provide a sleek and aggressive appearance, extending along the lower sides of the vehicle to complement its rugged design. Beyond aesthetics, these side skirts can also offer some protection against road debris and minor impacts. They are popular among Wrangler JL owners looking to customize their vehicle's appearance while adding a touch of style and individuality to their off-road adventures.