Gull Wing Truck Cap Topper & Overland Camper Shell for Work, Camping & Off-Road | Dirtbox Overland

Upgrade your truck with the Dirtbox Overland Truck Bed Topper — a rugged, lightweight, and modular system built for both overlanding and professional use.
Designed, fabricated, and tested entirely in-house, this topper combines T5 & T6 extruded aluminum construction, precision welding, and clean design to deliver unmatched performance on and off the road.

Engineered for Strength

Each unit is fully TIG- and laser-welded for maximum strength and long-term reliability. From job sites to backcountry trails, it’s built to handle the harshest environments while keeping your gear protected wherever you go.

Lightweight & Efficient Design

Weighing only 150–230 lbs (depending on bed length), the topper keeps your truck agile without sacrificing strength. Its low-profile design improves aerodynamics and complements modern truck lines, while the simple mounting system makes installation and removal quick and easy.

Versatile Roof Mounting System

Dual roof-mounted L-Track are built directly into the structure, giving you unlimited flexibility to mount solar panels, ladder racks, kayaks, skis, tie-downs, or recovery gear. Whether you’re working in the field or exploring remote trails, your setup adapts to every mission.

Built-In Power & Lighting

Every topper comes pre-wired and plug-and-play, featuring dimmable LED interior lighting, a 12 V outlet, and USB-A / USB-C ports to power tools and devices on the go.
Many owners upgrade with the Kingpin Light Package, adding illumination under the bed platform and at the rear door for better visibility during late-night setups or job-site work.

Visibility & Access

Standard front and rear windows provide natural light and visibility, while the front sliding pass-through windowallows cab-to-camper airflow.
Dual extruded-aluminum gullwing doors with recessed frames and deep automotive-grade seals block out dust and water even in the roughest conditions.
At the front panel, a dedicated weather seal prevents wind or debris from entering the cab-facing side — keeping the interior clean and secure.

Designed for Real Use

Built for both work and play — load your tools, mount recovery gear, or kick back on your tailgate for a sunrise.
Like every Dirtbox product, the topper is made for multi-use functionality, letting you enjoy your truck as a truck while unlocking its full overland potential.

Extreme-Condition Tested

Proven across Colorado’s toughest environments — from high-altitude snow to desert heat — the topper maintains insulation, sealing, and corrosion resistance year-round.
We’ve cold-tested it down to –46°F in Tuktuyaktuk, Northwest Territories, and heat-tested it in 135°F at Anza-Borrego Desert.
For extreme climates, we recommend pairing it with our LF Bro Diesel Heater setup (using a custom Dirtbox-fabricated mount) or portable A/C systems such as Cybertake or Zero Breeze for stable comfort anywhere.