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Welcome to The Check Out, our newsletter that gives you a deeper look at some of our editors' favorite things. Each week, we'll showcase a life-changing product, along with a bunch of other reviews, roundups, and deals that will help you live, work out, dress, eat, and take care of yourself better.

- The Editors at Men's Health

I Love the Sauna and Cold Tub. The Hyperice X Just Might Replace Them.

Imagine, for a moment, that you’ve been dealing with knee soreness (and if you’re like plenty of gym-goers who play basketball or hit the weights hard, you’re almost certain to deal with this at some point). To combat the problem, you might put a messy ice bag on your knee to dull the pain. Or maybe you’d put a heating pad on your knee to help drive blood flow.

Or, you might grab a sleek-looking black sleeve called a Hyperice X, strap it to your knee, connect it to your phone via Bluetooth, and enjoy a unique blend of heat and cold designed to drive blood flow and healing into your knee. And suddenly, the headache of recovery is just a bit easier.

The Hyperice X is the latest recovery device from a company that’s at the very forefront of recovery and wellness. A few years ago, Hyperice was leading the vibration therapy revolution, delivering vibrating foam rollers and massage guns, and last year, Hyperice added NormaTec, which makes air compression boots, to the fold.

The X is the brand's latest innovation—and it pushes the entire recovery industry in a new direction. It’s meant to simulate “contrast therapy,” a unique recovery therapy used by top athletes, one that has them alternate between extreme heat (via a sauna or hot tub) to extreme cold (ice bath or cold tub) for several cycles, each just a few minutes long. It’s a process that you once couldn’t really experience in the comfort of your home unless you had, well, a sauna and a cold tub. The X is about to change that.

- Ebenezer Samuel, C.S.C.S (Men's Health Fitness Director)