Defender Harness Safety System
Successfully crash tested to the same standard as child car seats.
Put on the Harness
The Defender Harness is worn like a regular walking harness, so your dog stays comfortable and secure before you even get in the car.
Connect the Tethers
Attach the Lower Tether first to keep your dog stable in the seat, then connect the Upper Tether to the seatbelt to engage in the event of a crash.
Drive with Confidence
Your dog stays secure on every ride, while still able to sit or lie down naturally, so travel feels calm, controlled, and comfortable.
Made In Canada
Built in-house so we can support our customers and customize when it matters.
Crash Warranty
If you're ever in a crash, we'll replace your Defender Harness Safety System for free.
Why Choose the Defender Harness Safety System?
One time purchase
A complete safety system built to stay in use, not get replaced.
Successfully Crash Tested
Tested to the same standards as child car seats.
Engineered Hardware
Patented Optimus Buckles with strength matched to your dog's weight.
Machine Washable
Easy to clean so it's ready for everyday use.
Made In Canada
Proudly manufactured locally in Winnipeg, Manitoba.
From our customers
★★★★★Andrew and Gordon went above and beyond for my girl, Freya's, car seat harness. Freya has a unique body shape being very long with such a deep chest, and they made her a custom crash safe defender harness and a longer car seat tether. Freya comes to work with me everyday and spend over an hour and a half in the car with majority of that being highway driving. It gives me SUCH peace of mind knowing that she is secure and as safe as she can be, if an accident were to ever occur. We couldn't be happier!
Kirsten Booth
★★★★★Andrew and his team are always kind and helpful. They genuinely care about your dog’s safety. They sized my dog for a harness and when it wasn’t quite right, they had us come into the shop to have the harness custom tailored for our boy, at no charge! Can not recommend enough!
Roxanne
★★★★★We recently purchased the Optimus Gear Crash Safe Defender harness kit for our 65lb Heinz 57 Porch dog :) The business owner was extremely responsive & helpful in selecting the appropriate item & size for our pet & our special request for a rush was met well in advance of the date requested with the harness arriving in record time! The harness is constructed of premium materials & is extremely well constructed. The harness & service exceeded our expectations! We would absolutely recommend this harness & business if you’re looking for a superior quality product & excellent customer experience 🦮💖
Right On Sister
★★★★★5+++ stars! I am so happy my friend lead me to this car safety system for my dog. I have tried many over the years and nothing compares to this product. My dog is super secure, she can’t accidentally disconnect herself. She’s secured at two points of contact, can sit and lay down. The harness goes on with ease and the hardware used is solid. I am very happy and the system has given me much peace of mind.
I liked the harness so much I also bought the car seat cover. I am very happy with the quality of the cover, it stays put, it was easy to get on and it compliments to car safety harness system very well.
The service is also EXCELLENT! Andrew went above and beyond for me & my baby floof. They clearly care about their product, their customers and the pets!
I recommend this car safety system to anyone who takes there dog in the car.
Jodie Wilkinson
★★★★★I feel safe with this dog seatbelt. All products are great quality. Fits really well on the dog. Service is 100%, able to teach me how to fit the harness and the car piece. I suggest this product and this team.
Gordon Chan
★★★★★The OG Bench cover is nothing but the best. The quality and durability of the material is excellent. It was extremely easy to install. Our dog Arie hopped right onto it no problem. Now we don't have to worry about all the junk getting our seat, no punctures or any other worries. Double bonus as a protector for our girl's booster seat! The flaps make it easy to buckle. And when we want to remove it, it's so easy to undo. Thank you!!
Chris Russell
Trusted by Safety Experts
Recommended by Canine Health Canada
Lets talk about the obvious reason you are smart enough to be here reading reviews.
Stop and think about you and your family securely strapped into your vehicle when the unthinkable happens and you are struck at speed on a highway for what ever reason. You guys belted in are safe as its going to get but Spot is not hence air born and two things happen.
Spot is a spot on the highway as she/ he was ejected or one of you has Spot as a new part of your body. The instant a movable object hits an immovable object 20 to 100 lbs of ricocheting dog is flying around in that vehicle unrestrained behind you and your kids.
I come from years of wilderness back country trekking so I know kit. I had some years militia training so I know kit. Over 30 years in law enforcement including search and rescue, tactical emergency response team working with K9s and countless investigations of highway fatalities as a uniform officer. I retired from a Regional Intelligence Unit where one of my assignments was predicting highway fatalities which I could do. I was in the death business so I can talk about it.
You guys are seated and strapped, your center of gravity is lower and your car is designed to keep a human in it not a dog. A dog is up higher so the center of gravity is higher where all the window glass is. I guarantee you in a roll over Spot is air born and out of the car if you are lucky, not something I would feel particularly lucky about nor I expect would you.
Also understand most seat belt safety systems involve explosives, tiny ones. Enough such that when your 80 kph vehicle meets a stationary tractor trailer bumper there is an explosive detonation within the seat belt you can't see. This causes an immediate retraction of your belt so you remain within the designated safety zone of your vehicles air bags and compression features.
Spot does not have that. I have been to too many roll overs, end for end, side by side or simply vehicles cut in half in a collision and seat belts/ air bags work.
I went looking for a seat belt system for my service dog and after reviewing several I was ecstatic to find Canadians make these and I am not left to the mercy of some Asian Amazon knock off. In life we get what we pay for. Quality costs money. I don't know about most dogs but a service dog is known to cost 20 to 30 grand. If you are in here looking for a system for your service animal or just your fuzzy friend for life what does a vet bill cost on a good day let alone one where you are racing to an emergency room for your pancaked dog? Friend that is a very long ride, take my word for it, if you can even get Spot there in time.
I will guarantee you another thing, this Crash Safe Dog belt is pretty cheap then compared to what that vet bill will be. Or worse the heart break of failing a friend who relies on you for everything. I particularly like how easy the seat belt system set up was to install. The detail and instructions are clear enough the dog can do it alone. For a service dog handler that seat tether system connection that connects my lead to her vest is perfect. She is secure in the vehicle and she is secure getting out of the vehicle as she is under control at all times; bad things happen very fast even on the shoulder of a highway. You are a magnet to distracted drivers so secure the dog.
Lots of harness colours to pick and the custom engraving was handy as velcro patches wear out or get lost. Lastly this is a Canadian family business that actually gives a darn about you and your animal. I actually read the pages of awesome reviews and I concur. The customer service was exemplary, the dialogue was very helpful and I can say I was treated very well.
$400 bucks is cheap insurance for my $20,000 dog and counting. A dog I could never replace nor could I face myself in the mirror knowing she was not there as I was too cheap to buckle her up.
Rest assured I have plenty of sleepless nights but none of those nights will ever be as a result of my dog not being right beside me as I was not willing to keep her as safe as I can make her. Driving on the high speed highways now is like something right out of the 1975 Norman Jewison movie Rollerball. Without the right kit its not if bad things will happen, its when.
If you really want to save money buy this harness. When your animal looks at you with love and admiration you have truly earned it.
Cannot say too many nice things. The harness itself is very well made. My dog is right between the smallest size and the next larger, and I purchased the small one...alas it was too small. Returned it and was contacted by one of the great people (A__ you know who you are) who helped me measure my dog to make sure we got the right size. You really cannot get better service or a better product. If you love your canine companion don't be tempted by the cheap stuff on Amazon!
The pink vest is our second purchase. The color rocks, btw!
The Defender Harness is the only equipment that protects and helps literally center and stabilize our dog in the car. This has helped a lot with her motion sickness as well.
We appreciate the stellar customer service, the intelligence and the thoughtfulness that went into creating the harness kits. We hope more people become aware of and invest in your life-saving products.
Great product, the harness and the holders firmly protect our GSD in the ford EcosSport. Fast delivery despite being in a different continent and really appreciated that the harness has been produced on our GSD size / specification. Highly recommended.
This harness is indeed quite impressive. Moreover, Andrew was a delight to collaborate with, and he thoughtfully answered all of our questions. Following the installation, we reached out to Andrew because the fit seemed different from what was demonstrated in the videos. Andrew graciously assisted us through a few steps. It was discovered that the problem stemmed from our seat cover, as we had a hard-bottom one. After changing the seat cover, everything functioned flawlessly. I am confident that my dog is safe and secure. After all, he is not merely a pet to me. He is my service dog.