Meet the Defender Harness: a revolutionary crash-tested dog seat belt harness! The all-in-one dog seatbelt and harness allow your dog(s) to be quickly and safely buckled into a vehicle and to seamlessly transition to dog walks or other activities. The Defender Harness is a multifunctional dog harness and has a connection for almost every activity.   

The Optimus Gear Defender Harness Standard Kit includes:

• OG Defender Harness
• OG Defender Harness vehicle tethers
• OG Leash Convertor

Check out our Premium Kit that includes a Leash and Storage & Washing Bag.

Research & Development

Our Research & Development team designed our patented dog seat belt harness to connect to the same vehicle safety systems that keep humans safe in cars, vans, SUVs, and trucks, to ensure that your dog(s) and passengers are all kept safe! The major safety benefits of the Defender Harness include: 

• Distracted Driving: stopping your dog from having free range in the vehicle, which is a big distraction for drivers; and in the unfortunate event of a collision or sudden stop, the Defender Harness keeps your pup in their seat. 
• Collisions: if you’ve ever had to hit the brakes quickly with your dog in the back seat, you already know how sad it is when they scoot off the bench and bump into the seat in front of them. 
• Protecting Everyone: In addition to keeping your dog safe while traveling, we want to make sure that everyone riding in the vehicle stays safe.

The Defender Harness has dedicated connections that make it one of the best dog harnesses for walking, running, obedience training, towing, and any other activity you may need an extremely durable dog harness for. Designed and manufactured in Canada with custom, high-strength hardware and heavy-duty industrial stitching. The Defender Harness has been engineered to safely withstand crash forces of up to 48 km/h or 30 mph!

While also designed to prevent your dog from having free range in your vehicle, the Defender Harness is forgiving enough to allow your pup to sit up or lie down, ensuring they can make themselves comfortable.

The Defender Harness is super simple to install and use! Once you have the hardware clipped into your vehicle, buckling your pup into the back seat takes less than 10 seconds – only two buckles.

Optimus Gear® products are designed and manufactured in Canada. We stand by our product’s high-quality materials and fabrication. If the Optimus Gear ® Defender Harness is involved in a crash and saves your dog and other passengers from injury, please contact us at contact@optimusgear.com to participate in our guarantee program.

Durability

• Constructed with Nylon Cordura® exterior panels for superior abrasion resistance.
• Soft weave high strength webbing for comfort and impact strength
• Custom hardware designed to withstand impact forces.

Versatility

Connections are available in three places; two on the back panel and one on the chest panel and can be used for:

• Safe vehicle travel
• Walking
• Running
• Towing
• Obedience training

A wide variety of dog harness accessories are available, including:

• Additional vehicle tethers 
• Collar
• Leash
• Leash Addition
• Active Leash
• Poo bag roll holder
• Storage & Washing Bag

The Defender Harness currently comes in four (4) sizes. Please refer to the sizing guide to determine which harness size suits your dog. X-Small size will be offered in the future! X-Large size has not been crash tested but uses the same technology as the other Defender Harness sizes.

Download: Defender Harness Sizing Guide

Download: Defender Harness Installation & Use Instructions

Check out the videos to see how the Defender Harness works:

Watch: Defender Harness Highlights 

Watch: Defender Harness Detailed Overview 

Watch: Defender Harness Installation & Use Video

Watch: OG Leash Tutorial