The Legend of the Chilly GOAT

Prepare to be mesmerized by the legend of the Chilly GOAT! Picture this: Master Spas, the global leader in the swim spa industry, has been on a mission to help folks live life better through aquatic wellness, fitness, and therapy for what feels like forever (but is actually a few decades). As we basked in the awe-inspiring stories from our customers whose lives were transformed by our products, we couldn't resist the urge to innovate even further.

Enter our long-time collaborative partner, the legendary Michael Phelps, who shares our desire to help people live life better. One fine day, as we were trading tales of grandeur with Michael, he casually mentioned that his quest for the perfect cold tub had left him high and dry. Without hesitation, he turned to us with sparkling eyes and asked, "Hey, have you guys ever thought of making one?"

Well, let's just say a light bulb the size of a swim spa appeared above our heads. In a frenzy of excitement, we embarked on a madcap exploration of all things cold tub - from the ones you find at home to those lurking in the gym. It didn't take long for us to realize that we possessed the power to unleash a revolution in the world of cold-water immersion.

And just like that, the legend of the Chilly GOAT was born! Prepare yourself for an exhilarating adventure that challenges you to embrace the icy plunge and live life with unwavering determination. The Chilly GOAT is here to empower you to "Go Cold and Live Bold" because, let's face it, lukewarm experiences cannot compare to the thrill of goosebumps and the triumph of glory. Get ready, for an extraordinary journey revolving around subzero wonders awaits you.
Michael Phelps

"I’ve used several different types of cold tubs over the years but was always challenged by their size and shape. In working with the team at Master Spas, it was important to me that we design a tub that allows for full submersion to help maximize the benefits of cold-water therapy."


GOATs don't just happen. It takes years of hard work, dedication, and innovation for athletes like Michael Phelps to earn the title of the greatest of all time in swimming. The GOAT of cold tubs doesn't just happen either. You can't buy a pre-made bathtub shell or a large water tank, put a chiller on it, and expect to be crowned as the best. We analyzed how people use cold tubs, the pros and cons of existing products, and then built the best-performing, best-fitting and best-looking cold tub on the market.

Not that getting into a cold tub should be a relaxing experience, but the addition of our SoftTread™ nonslip material to specific areas of the tub makes it safer, easier, and more enjoyable to use our product than other brands. The perfectly situated armrests make it easier to get in and out of the tub, and the spacious wide seat and leg area allow anyone, regardless of size, to enjoy a refreshing chill.

The modern look of our product means it won't be an eyesore, but an attractive focal point wherever you place it. So, don't settle for anything less than the GOAT of cold tubs, meticulously designed and crafted for your ultimate comfort and satisfaction.


To be called the greatest of all time, one must perform at the highest level. Each Chilly GOAT can be installed indoors or outdoors, in hot or cold climates. Our industry-best 2.1hp chiller delivers a cold-water experience on demand and can even be used to heat the water for a hot soak. The strength of our chiller not only ensures faster cooling and heating compared to competitors but also greater efficiency. Chilly GOATS also utilize a quality, proven circulation pump to keep the water moving and break up the thermal barrier that naturally forms on our bodies when submerged in water. This means you get to experience more of the cold and enjoy more of the benefits of cold-water immersion.

The weatherproof cabinet of the Chilly GOAT never needs staining either, allowing you to focus on pursuing your goals rather than tending to tedious tub maintenance. So, whether you're aiming for greatness or simply seeking a reset, the Chilly GOAT is here to provide the ultimate cold tub experience in any climate.

The Master Spas Advantage

As the global leader in the swim spa market and the largest manufacturer of hot tubs, with 100% of our operations based in the United States, Master Spas understands what it takes to build innovative, long-lasting, quality products. You can be sure that every Chilly GOAT undergoes a meticulous production and quality control process, utilizing the best and most reliable components for years of ownership satisfaction.

The Best Ownership Experience

This isn't our first rodeo. With decades of experience with aquatic products, our expert customer care team (located in Fort Wayne, Indiana BTW) is ready to assist you as needed. We're just a click or call away, ready to answer any questions about your Chilly GOAT and ensure you receive the support you deserve. Plus, our library of how-to videos and quick tips is available 24/7, providing you with valuable resources at your fingertips.

30 Day Return Policy

You’re the hero of this story and if for whatever reason you’re not satisfied with your Chilly GOAT, you can return it within 30 days. To learn more, click here.

Your greatest self awaits just outside your comfort zone. It’s time to go cold and live BOLD with Michael Phelps Chilly GOAT Cold Tubs by Master Spas.

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