Cooling Comfort for Your Dog When Temperatures Rise.
ThermoHarness⢠is a patent-pending, breathable harness designed for hot-weather activity â with strategically placed pockets for optional cooling packs (sold separately). Built for everyday dogs, service dogs, working dogs, and heat-sensitive breeds. Founding Member preorder: $29.99 (regular $49.99).
Why ThermoHarnessâ˘
Cooling Support
Help your dog stay more comfortable during warm weather walks â so you can enjoy summer without worrying about overheating.
Warming Support
Added comfort on chilly mornings and cooler days, so your dog stays cozy even when the temperature drops.
Lightweight Design
Light enough that your dog won't even notice it â comfortable enough for daily walks, errands, and adventures.
Adjustable Fit
Designed for a secure, comfortable everyday fit across all breeds â so it stays in place without restricting movement.
Thermal-Ready Pockets
Built-in pockets hold compatible gel packs (sold separately) so you can add cooling or warming whenever your dog needs it â one harness, all year.
All-Season Comfort
One harness that works year-round â comfortable on its own, with optional gel packs for extreme heat or cold.
How It Works
A premium, lightweight everyday harness â with built-in pockets for optional thermal gel packs (sold separately) whenever your dog needs extra cooling or warming.
Everyday Harness
A lightweight, breathable, adjustable harness â comfortable for daily walks on its own, no gel packs required.
Optional Thermal Packs
Add compatible gel packs (sold separately) into the built-in pockets for cooling or warming support.
All-Season Ready
More comfortable walks all year â with or without gel packs.
The harness is the vehicle. The gel packs do the work.
ThermoHarness⢠is built to hold the thermal gel packs you can already get anywhere â Amazon, CVS, or your local pharmacy. We don't sell the packs; we made the harness that puts them to work for your dog.
Prep
Grab a standard thermal gel pack from Amazon, CVS, or your local pharmacy. Freeze it for cooling, or warm it in hot water.
Insert
Slide the gel pack into the ThermoHarness⢠built-in pocket. It seats flush against the lining.
Walk
Your dog stays in their comfort zone for the full walk â swap packs in seconds.
Already have gel packs at home? Reserve your ThermoHarness⢠and put them to work.
Reserve Your Harness â $29.99
From Sketch to Sidewalk
Watch the ThermoHarness⢠story â the founder's mission, real prototype testing, and early dogs trying it out in the wild.
The Founder's Story
Why ThermoHarness⢠exists and the problem it solves for dogs in extreme weather.
Prototype In The Wild
Real testing footage with dogs across hot and cold conditions before launch.
Perfect For
What Size Is Your Dog?
Answer a couple of quick questions and we'll recommend the perfect ThermoHarness⢠size â guaranteed to fit or your money back.
Pick your dog's breed
XS
14â18 in
S
18â22 in
M
22â26 in
L
26â30 in
XL
30â34 in
Built For Adventure
Every Walk. Every Season.
Built With Proof
From patent filings to field research â every step of this journey documented.
Patent Application Filed
Utility patent application submitted to the USPTO for the ThermoHarness⢠system. Supporting documentation on file. Application received and confirmed.
130+ Owner Interviews
Field research conducted across the United States validating the product concept and design direction.
Prototype Testing
Ongoing prototype iterations testing harness fit, pocket placement, and gel pack retention across multiple dog breeds.
Built On Research, Not Guesswork
133+
Dog Owner Interviews
Multiple Prototype Iterations
Feedback Across Multiple States
Continuous Product Testing
Customer Interest Across The United States
Interest from dog owners across the United States is helping shape ThermoHarness⢠before launch.
3 of 500 Founding Member spots claimed
Founding Member pricing closes once these spots are filled. Only 497 left at $29.99.
Reserve Your
ThermoHarness
Join the early adopters helping us bring ThermoHarness⢠to dogs everywhere â service dogs, working dogs, heat-sensitive and brachycephalic breeds, seniors, and active pets in high-heat climates. Lock in pre-order pricing before retail launch.
ThermoHarness⢠is patent pending and currently in prototype / pre-production development. It is not shipping yet. Estimated to ship in mid-2027. Pre-orders are fully refundable until production completes. Production timelines may change, and we will provide progress updates.
Early-adopter pre-order pricing closes once spots are filled.
Founding Member Spots
3 of 500 claimed
Real-time count from production data.
Early Adopter Price â $29.99
Regular price $49.99
First Access to Production Run
Before public launch
Fully Refundable Pre-Order
Until production completes
đž Join the early adopters helping shape ThermoHarnessâ˘.
Let's start with you
Estimated to ship in mid-2027. Pre-orders are fully refundable until production completes. Production timelines may change, and we will provide progress updates.
Payment is collected securely through PayPal at the next step. Pre-order is fully refundable until production begins.
Join Free Early Access
Free signup â no payment required. We'll send product-development and launch updates. Unsubscribe anytime.
Explore ThermoHarnessâ˘
While earning my Master of Business Administration, I was also developing another patented invention. That experience taught me an important lesson: having a great idea isn't enoughâyou also have to build something you can realistically bring to market.
I wasn't a scientist, and I didn't have millions of dollars for research and development. So I challenged myself to find a meaningful problem I could solve with determination, customer feedback, and disciplined execution.
I had no proof that dog owners wanted it. I hadn't interviewed anyone. I didn't know if there was a market. So instead of assuming I was right, I went out and tested it.
I started talking to dog owners, visiting parks, building prototypes, collecting feedback, and refining the design. Every interview taught me something new, and every version of ThermoHarness⢠became better because of the people willing to share their experiences.
Ideas are easy. Validation takes work. That's the journey I'm still on.
â Leslie D. Redd III, Founder
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