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The Sport Series S-145 360 degree product view
The Sport Series S-145 360 degree product view

The Sport Series S-145

Starting Base MSRP $79,400

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Color: White
Trailer Specs
  • 20 ft 7 in
  • 9 ft 6 in
  • 3900 lbs
  • 460 lbs
  • 4600 lbs
  • 545 lbs
  • 740 W
  • 600 Ah
  • Adjustable Airbag
  • Hydraulic Disc
  • 87 in
  • 75.5 in
  • 78 in
  • 2+
  • 245/75 R16
  • 21 in
  • 18 in
  • 60 Gal
  • 60 Gal
  • (2x) 20 lb
  • 4.9 cu ft (140 L)
  • 20,400 BTU
  • 6500 BTU
  • Tube Steel
  • Powder Coat w/e-coat Primer
  • 5454 lbs

Power Upgrades
  • Stage 1: Solar

    Stage 1: Solar

    240watts of solar (3- 80w panels wires in series) pair…

  • DC/DC Charger - 50A

    DC/DC Charger - 50A

    Keep your battery bank topped up no matter where the t…

Accessory Upgrades
  • Corner Leveling Jacks

    Corner Leveling Jacks

    A stable, level campsite starts with a solid foundatio…

  • Pull-Out Kitchen

    Pull-Out Kitchen

    The CAN pull-out kitchen is an outdoor cooking upgrade…

  • Starlink Pole Mount Kit

    Starlink Pole Mount Kit

    Stay connected from anywhere with the custom Flagpole …

  • Dry Flush Toilet

    Dry Flush Toilet

    The Laveo Dry Flush toilet is the most practical and h…

  • Front Box Molly Panels

    Front Box Molly Panels

    Add function to your Storage box with our aluminum mol…

  • Traction Board Mount

    Traction Board Mount

    Our traction board mount attaches to the integrated t-…

Awning Upgrades
  • 270° Awning

    270° Awning

    Take your outdoor living space to the next level with …

  • Awning Wall Kit for 270°

    Awning Wall Kit for 270°

    Get more from your 270° awning with the purpose-built …

Made in the USA
A black SUV towing an off-grid camper drives along a snowy road at sunrise or sunset, with an open, snow-covered field and misty horizon in the background. The sky is filled with soft, colorful clouds.

Your Next Adventure Starts Here.

Trail-ready capability and four-season comfort built for the adventurer who refuses to stay home.

Learn More About the S-145 Model

A white and black Xplore Series off-road trailer with angular windows, solar panels on the roof, a spare tire mounted on the front, and outdoor nature graphics on the side, shown on a plain white background.
Close-up of a trailer hitch lock secured on an Outback Series trailer coupler. The metal hitch connects to a black trailer arm, with safety chains visible against the paved surface in the background.

Articulating Hitch

When off-road articulation is king! The articulation of the Cruisemaster DO35 allows you to take your trailer anywhere the 4WD can get with its rotational articulation both horizontally and vertically. Articulation in all directions ensures the trailer always follows you in challenging terrains.
View through an open off-grid camper window reveals a snowy forest floor dotted with pine trees under daylight. The window frame and interior details of the cozy Xplore Series van are visible inside.

Dual-pane Thermo acrylic windows

Enjoy superior performance and durability with the dual-pane, lightweight acrylic windows. High quality rubber seals for maximum weatherproofing. The interior of the window contains the retractable fine mesh insect screen on one side & a blackout blind with reflective exterior on the other. These can be used
Interior of a modern Xplore Series off-grid camper featuring a closed exit door with a vertical handle, window with blind, part of a bed with black and gray blanket, plus a dining area with table and cushioned seating.

Entry Door

Our premium insulated entry doors feature dual locking latches and dual rubber seals, ensuring a secure and weatherproof seal. Features include a dual-pane acrylic window and a roll up privacy blind. Has an integrated trash/storage compartment and durable grab handle.
Close-up of a black metal bracket attached to a grooved metal rail with a screw, set against a light gray surface—typical of durable components found in the Imperial Outdoors Xplore Series off-grid camper.

Integrated T-Slot mounting system

Our custom aluminum extrusions around the entire perimeter of the camper feature a durable t-slot that allows for convenient accessory mounting. All of our exterior accessories secure firmly to this t-slot reducing the amount of holes and fasteners into the body of the trailer. Adding your own accessories is a breeze with this feature.
A large, cream-colored side panel with window and door cutouts is suspended by a yellow crane in a factory, surrounded by industrial equipment—part of the Xplore Series off-grid camper lineup from Imperial Outdoors.

Fully Composite Construction

Lightweight, Strength and industry leading thermal performance is achieved with our one piece custom composite panel system. Maximum efficiency in the most extreme weather conditions is made possible with the industry's thickest panels,over 2-½” thick! The panels are bonded with an industrial grade structural adhesive to the aluminum exo-skelatin to create a rugged one-piece body that can handle any rugged terrain your adventures may bring you.
A close-up view of a mounted spare tire and two vented black metal storage compartments on the front of this Imperial Outdoors off-grid camper, with part of a metal jack visible below.

Front Cargo Box

The Sport Series front storage box combines practical storage with serious trail preparedness. A full-size spare tire is mounted directly to the front, ensuring you're never stranded on a backcountry road with a flat and no solution. The integrated storage box provides additional room for recovery gear, tools, and trail essentials — all organized and accessible right at the front of the trailer. Shower w/optional molle panels for securing more essentials.

Trailer Specs

  • Overall Length (not including rear accessories)20 ft 7 in
  • Overall Height9 ft 6 in
  • Unit Dry Weight (base)3900 lbs
  • Tongue Weight (base)460 lbs
  • *Unit Dry Weight (w/all options)4600 lbs
  • *Tongue Weight (w/all options)545 lbs
  • Solar Capacity (max w/options)740 W
  • Battery Capacity (max w/options)600 Ah
  • Suspension TypeAdjustable Airbag
  • Brake TypeHydraulic Disc
  • Overall Width (including fenders)87 in
  • Interior Height (floor-to-ceiling)75.5 in
  • Interior Width (wall-to-wall)78 in
  • Sleeping Capacity2+
  • Tire Size245/75 R16
  • Ground Clearance (to frame)21 in
  • Ground Clearance (to skid plate)18 in
  • Fresh Tank Capacity60 Gal
  • Grey Tank Capacity60 Gal
  • LP Tank Capacity(2x) 20 lb
  • Refrigerator Capacity4.9 cu ft (140 L)
  • Furnace Output20,400 BTU
  • Air Conditioner (12v)6500 BTU
  • Frame MaterialTube Steel
  • Frame CoatingPowder Coat w/e-coat Primer
  • Max Trailer Capacity (GVWR)5454 lbs

Serious Capability. Seriously Built.

A small white and black off-grid camper labeled Sport Series is parked on a snowy road, with pine trees and a tall, snow-covered mountain peak in the background.
Close-up view of a vehicle’s suspension system with a yellow coil spring and red shock absorber, as the wheel drives over a rocky, uneven off-road surface—built tough for the Outback Series off-grid camper.
A view from the top of an off-grid camper with a VELIT rooftop unit, driving on a winding road through a forested mountain area under a bright blue sky with scattered clouds.
A small Sport Series camper trailer parked on a gravel area near a lake, with mountains in the background under a blue sky. The trailer features outdoor-themed graphics of trees and birds.

Comfort in any condition

Imperial Outdoors was built in Wisconsin, and that means cold-weather performance isn’t a marketing claim — it’s a core competency. Every trailer in the lineup is built with nearly 3″ of fully insulated composite wall panels, thermal acrylic windows, heated water tanks, and a Truma Combi furnace and water heater system tested to maintain interior comfort down to -40°F. Whether you’re camping in July heat or a January freeze, the cabin stays exactly where you want it — comfortable.

A small white and black off-grid camper labeled Sport Series is parked on a snowy road, with pine trees and a tall, snow-covered mountain peak in the background.

Comfort in any condition

Imperial Outdoors was built in Wisconsin, and that means cold-weather performance isn’t a marketing claim — it’s a core competency. Every trailer in the lineup is built with nearly 3″ of fully insulated composite wall panels, thermal acrylic windows, heated water tanks, and a Truma Combi furnace and water heater system tested to maintain interior comfort down to -40°F. Whether you’re camping in July heat or a January freeze, the cabin stays exactly where you want it — comfortable.

Modern RV interior from the Outback Series featuring a compact kitchen with wood cabinets, a sink, stove, fridge, dining table with seats, and a bed with gray bedding. A window above the sink lets in light, and a vase with flowers adds decor.

Small Footprint. Big Comfort.

Every inch of the S145 interior was designed to maximize comfort and livability, because where you sleep matters as much as where you go.
A cozy camper interior from the Outback Series with a made bed, gray blanket, wooden cabinets, a small kitchen sink, and a table set with mugs and plates. Light wood flooring and ample natural light enhance the inviting space.
A cozy sleeping area in the Xplore Series off-grid camper features a quilted brown headboard, a beige bedspread, a small wall-mounted reading light, and a white pull-down window shade beneath a wooden shelf.
A minimalist kitchen countertop featuring a sleek black induction cooktop, a stainless steel sink, and a control panel with switches—perfect for an Outback Series off-grid camper with an electrical outlet on the light-colored wall.
A modern kitchen countertop with an electric cooktop, sink, and faucet—perfect for any off-grid camper. Below the counter, cabinets and drawers are open, revealing empty shelves and storage space. The floor is light-colored.
An open, empty refrigerator with shelves and door compartments in a modern RV kitchen, next to a stovetop, white countertop, and wooden cabinets. Natural light pours in—a signature touch of the Imperial Outdoors Xplore Series off-road trailer.
A modern RV kitchen from the Outback Series features light wood cabinets, a tall black refrigerator, an electric cooktop, a stainless steel sink, and open white pantry doors revealing empty shelves.
A compact, modern bathroom in the Imperial Outdoors Sport Series off-grid camper features a stainless steel sink, black faucet, round towel ring, and a small shower area with black showerhead, wooden floor slats, and ceiling vent above.
A modern, compact bathroom from the Xplore Series features white surfaces, a stainless steel sink, a black faucet, a large mirror, open wooden shelves, and a toilet partially visible on the left.
A small modern shower in an Imperial Outdoors off-grid camper features a wooden slatted floor, wall-mounted showerhead, white walls, a built-in bench, and a metal towel ring just outside the shower.
A minimalistic shower inside the Outback Series off-road trailer features a black showerhead and hose on a white wall, beneath a ceiling vent fan with blue light. A round ceiling light is visible to the left—true Imperial Outdoors style.
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A small white and black Sport Series off-road trailer with outdoor-themed decals is parked on a dirt area, surrounded by dry bushes and rocky hills in the background under a cloudy sky.

Manuals & Docs

When you’re out on an adventure, the last thing you want is to be left guessing.  Visit our Manuals & Docs page to find the info you’re looking for.  Owner’s Manuals, Warranty info, Maintenance guides and more are just a click away.

Manuals & Docs

Your Questions Answered

Find the answers to most common questions. If you don’t see your question listed, let us know so we can add it to our list. We want our customers to be informed so you can enjoy your adventure without stressing over the small things.
View all FAQs

The S145 is built on a reinforced, powder-coated steel perimeter frame with Cruisemaster CRS independent suspension, 31" all-terrain tires, and 21 inches of ground clearance. It's a platform that was designed for rough forest roads and backcountry trails — not just tolerates them. When the pavement ends, the S145 keeps going.

A black pickup truck towing an Imperial Outdoors Outback Series off-road trailer is parked by a large lake with mountains in the background under a bright sun and blue sky. Dry grass covers the ground.

Ready to Start Your Adventure?

Get in touch with one of our Authorized Imperial Outdoors® dealers!