Make your dog safe in your car.

The only two click dog harness successfully crash tested to the same standard as a child seat.

Two Click Dog Harness
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EASY ONE-TIME SETUP
LIFETIME GUARANTEE
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Your Journey, Their Safety
Find your perfect fit. Protect your pup like they deserve with a harness designed for comfort, safety, and adventure.
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Click and go, then enjoy safe adventures. Equip yourself with tools designed to make every journey seamless and secure.
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When compared to others.

Optimus Gears Defender Harness is the most durably constructed crash-tested dog harnesses we reviewed. It’s designed to withstand impact forces with stress-tested custom metal buckles and hardware and high-strength webbing. And the padded chest and back panels made the harness comfortable. And with chest and back leash attachment points, it’s also convenient for short walks.

- GPF

STAT

In a car crash at just 30 mph, an unrestrained 50-pound dog can be thrown with 1,500 pounds of force—enough to cause serious injury to both your dog and everyone else in the vehicle.

Vehicles aren't made for dogs

Protect your dog like they're family (because they are).

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Trusted by Dog-Loving Families

★★★★★

I did not get the Optimus Gear seat cover because of my dog. I got it because my kids [5 and 2] had all but destroyed the back seat of my car. Every time I removed a car seat I was greeted by incredible stains, ground up cheerios, muddy boot prints, and open markers pressed into the seats. Now my seats are protected, easy to clean, and best of all it is incredibly easy to hook up my car seats with the seat cover.

Darryl Conrad
★★★★★

I know first hand what it feels like to be involved in an accident with your dog strapped into the backseat. Unfortunately, the harness I owned at that time did not hold, even though it said it had been crash tested. I now own a Defender Harness by Optimus Gear and I love it. This harness has been successfully crash tested. From now on I will trust only Optimus Gear with the safety of my most precious cargo.

BJ
Ottawa
★★★★★

Designed to last…

We have a Siborgi and a Jack Russel puppy, and every time they get in our car I’m thankful for these seat covers.  These twins of terror don’t stop their rambunctious play on the way home from the dog park, and when we’re at the cabin, they have a knack for sniffing out the muddiest areas of the bush just in time to climb in to the car and head back to the city.  After 3 months, the easy-to-clean, durable fabric barely shows a scuff!  The seat covers take minutes to install, allow easy access to the seatbelt latches, and the zipper on the rear bench cover conveniently allows one or both of my rear seats to fold down easily, without any twisting or pulling on the material. These covers are designed to last and worth the money.

Stephen Holbrow
★★★★★

We love our Optimus Gear Seat Shield and Defender Harness! The seat shield is easy to install and remove. The harness keeps everyone safe on trips to the cottage. Mika can sit up or lie down wearing the harness. High quality items!!

Jen Piasecki

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Keep your dog safe in 3 simple steps

1
Find your fit.
2
Click & Go.
3
Enjoy many safe adventures!
FIND YOUR FIT

Lifetime Crash Replacement Guarantee.

If you ever get into a crash, we'll send you a new one for free. Free returns (if we ever get one!). Made in Canada. 100% Satisfaction Guaranteed, backed by our Safety Guarantee & our Comfort Commitment.

Hi Dog Lover!

Frequently Asked Questions

You can use our step by step guide found HERE. Or watch our installation video HERE.

If you’re in an accident, we’ll replace your harness for free. Like car seats, our harnesses are designed for single-use safety during a crash to ensure maximum protection. Just reach out to us, and we’ll take care of the rest!

See here for more information on replacements and warranties.

Absolutely! Our gear makes a thoughtful and practical gift for any dog owner. Just select the size and options for their pup, and we’ll handle the rest. If you’re unsure about sizing, our team is happy to help!

1-year replacement or repair for manufacturer defects for all products.

We Ship to Canada and USA on our website and will ship worldwide! Just reach out if you're not there and we will get you a quote to get you your Defender Harness.

Being successfully crash tested means our harnesses have passed rigorous testing to the same standards as child car seats. This ensures they provide reliable protection in the event of an accident, keeping your dog secure and reducing the risk of injury. Our testing proves that we prioritize your pet's safety with the highest level of care and quality.

All our kits include a leash converter, allowing you to use any leash you already own with the harness.

We also offer several leash options to enhance your experience:

  • Standard Leash: Features a foam handle and swivel connector to prevent tangling.
  • Leash Link: Easily clips onto your belt or another leash for hands-free walking.
  • Active Leash: Converts into a belt or handle, with elastic for hands-free active adventures like running or hiking.

Our harnesses are designed to keep your dog safe and comfortable, whether in the car or on the go!

Dogs lives are too short to leave them at home

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