






LEER 100XR Truck Cap | Premium Fiberglass Topper
The LEER 100XR combines aerodynamic styling with premium fiberglass construction to create the perfect balance of form and function. Our molded fiberglass shell is factory-painted in your truck's exact OEM color, ensuring a seamless match that looks like it rolled off the assembly line. The 100XR sits flush with your truck bed rails and features a sleek, low-profile design that enhances both appearance and fuel efficiency.
Every 100XR is built in our facilities using advanced composite materials that resist dents, rust, and UV degradation. We engineer each leer cap with reinforced corners, integrated weather seals, and a heavy-duty aluminum frame that provides decades of reliable protection. Whether you're securing work equipment, camping gear, or everyday cargo, the 100XR transforms your truck bed into lockable, weather-resistant storage space.
100XR Construction & Features

Premium Fiberglass Construction & Paint Matching
We manufacture the 100XR using compression-molded fiberglass that’s significantly stronger than aluminum alternatives while weighing less than steel. Our proprietary composite formula includes UV inhibitors that prevent fading and chalking even after years of sun exposure. The result is a leer cap that maintains its appearance and structural integrity through extreme weather conditions.
Every 100XR receives factory paint application using your truck’s specific OEM color code. We use the same automotive-grade paint systems found in vehicle assembly plants, applying multiple primer and clearcoat layers for a finish that’s indistinguishable from your truck’s original paint. Our color-matching process accounts for metallic flakes, pearl effects, and even factory texture, ensuring perfect visual integration.

Aerodynamic Design & Fuel Efficiency
Low-Profile Contoured Shell
The 100XR features a carefully engineered roofline that follows your truck cab’s contours, minimizing the aerodynamic disruption that causes fuel economy loss. Our wind tunnel testing shows the 100XR creates 40% less drag than traditional square-back toppers, translating to measurable fuel savings on highway drives.
The flush-mount design sits level with your bed rails rather than extending above them, further reducing wind resistance. We precision-fit each unit to eliminate gaps where air turbulence typically forms, and our integrated weather seals prevent whistling at highway speeds.
Security Features & Weather Protection
Every 100XR includes our stainless steel three-point locking system on the rear door, with cylinders that match your truck’s existing key for convenience. We reinforce the door frame with aircraft-grade aluminum extrusions that resist pry attempts, and install heavy-duty gas struts that hold the door open at any angle.
Our weather seal system uses EPDM rubber gaskets that remain flexible in temperatures from -40°F to 140°F. We install seals at every panel joint and around all glass openings, creating a barrier that keeps out rain, snow, and road spray. The front sliding window includes a removable screen for ventilation and a tinted privacy panel, both secured with corrosion-resistant latches.



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LEER 100XR Truck Cap Questions
We use your truck's factory OEM paint code to mix automotive-grade paint that exactly matches your vehicle's finish. Our process includes the same primer, base coat, and clearcoat layers used in vehicle assembly plants. We account for metallic flakes, pearl effects, and texture to ensure the leer cap integrates seamlessly with your truck's appearance. The paint is applied in our controlled facility and cured using industrial processes that create a durable, UV-resistant finish.
The 100XR is engineered for specific truck makes, models, and bed configurations. We manufacture dedicated units for all major brands including Ford, Chevy, GMC, Ram, Toyota, and Nissan across short bed, standard bed, and long bed sizes. Your dealer will verify your truck's exact specifications including year, cab style, and bed length to order the correct 100XR unit. Our clamp mounting system accommodates factory bed rails without drilling or modifications.
The 100XR includes a limited lifetime warranty on the fiberglass shell against manufacturing defects, cracks, and delamination. Paint finish is covered for three years against fading, peeling, or chalking under normal use. Hardware, seals, and windows carry a three-year warranty. The warranty is transferable to subsequent owners and requires installation by an authorized LEER dealer to remain valid.
The 100XR is designed with reinforced mounting points in the roof that accept LEER-approved ladder racks and crossbar systems. We recommend using accessories specifically engineered for fiberglass caps to distribute weight properly and avoid stress concentration. Your dealer can show you compatible rack systems, and we provide installation guides with load ratings and mounting locations for safe accessory integration.
The fiberglass construction of the 100XR offers superior paint matching, smoother aerodynamics, and better resistance to dents compared to aluminum alternatives. Fiberglass doesn't conduct temperature like metal, keeping the interior cooler in summer and warmer in winter. While aluminum caps may cost less initially, the 100XR's paint durability and lifetime warranty provide better long-term value. Fiberglass also eliminates the risk of corrosion that affects aluminum in salt-exposed regions.
Every 100XR includes the molded fiberglass shell with factory paint, front sliding window with screen and tint, carpeted interior headliner, LED dome light wiring, rear door with three-point locking system, all mounting hardware and clamps, weather seals, and professional installation at an authorized dealer. We also provide owner documentation, warranty registration, and care instructions. Optional upgrades include side windows, interior shelving, upgraded lighting, and roof rack systems.
Wash your leer cap using the same automotive soap you use on your truck, avoiding abrasive cleaners or brushes. We recommend waxing the fiberglass every 3-4 months using quality automotive wax to protect the clearcoat. Clean the weather seals with mild soap and treat them annually with silicone spray to maintain flexibility. Inspect mounting clamps twice yearly and tighten if needed. Store your truck in covered parking when possible to maximize paint life and prevent UV degradation.




