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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
Imperial Outdoors Sport Series S145 being towed by a Jeep Wagoner in a foggy cold winter morning sunrise.

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

s-145 front view
Cruisemaster articulating D035 hitch on all Imperial Outdoors Sport Series.

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.
Dual pane thermal acrylic window that keep you warm in the Imperial Outdoors off grid camper in the winter forest.

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
Heavy duty door on the Imperial Outdoors off grid trailer. It offer additional storage and privacy with the pull down blind.

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.
Imperial Outdoors Sport Series custom t-slot extrusion with accessory attached.

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.
Imperial Outdoors precision CNC cut one piece composite wall piece being housed with crane.

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.
Front box with spare tire and molle boards attached on the Imperial Outdoors Sport Series.

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.

Winter camping in the S145 from Imperial Outdoors in the Rocky Mountains of Colorado.
The S145 from Imperial Outdoors with the Cruisemaster CRS suspension crawling over a rocky terrain trail.
The S145 in the mountains with the solar array and 12v Velit air conditioner.
The S145 from Imperial Outdoors set up an off grid base camp long a lake.

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.

Winter camping in the S145 from Imperial Outdoors in the Rocky Mountains of Colorado.

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.

Premium kitchen of the S145 from Imperial Outdoors.

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.
Full size bed in the S145 from Imperial Outdoors.
Upper shelving above the bed in the Imperial Outdoors S145.
Single burger induction cooktop in the S145 from Imperial Outdoors.
Premium kitchen cabinets all open in lower base in the S145 from Imperial Outdoors.
12v fridge-freezer combo from Indel Webasto in the S145 from Imperial Outdoors.
Kitchen pantry next to the 12v fridge in the kitchen of the S145 from Imperial Outdoors.
Spacious bathroom with a teak wood floor in the Sport Series from Imperial Outdoors.
Spacious counter and shelving space in the Sport Series from Imperial Outdoors.
Stand up shower with stainless steel base and a teak wood floor in the Imperial Outdoors Sport Series off grid camper.
Hand held premium shower head in Imperial Outdoors Sport Series stand up shower.
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S145 off grid camping along the sandstone cliffs of Utah.

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.

Dodge TRX pulling the S145 along the side of Montana lakes.

Ready to Start Your Adventure?

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