SaunaShield™ Cooling Boxers
🛡️ Protect fertility from the heat of the sauna
📈 Protects testosterone levels
🌱 100% pure cotton no microplastics BPA free
🔥 Push your heat tolerance to the limit
Size Chart
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M
This is an estimate based on average proportions. If you know your waist measurement, use the chart below instead.
| Size | Waist (in) | Waist (cm) | Hip (in) |
|---|---|---|---|
| S | 28–30 | 71–76 | 34–36 |
| M | 31–33 | 79–84 | 37–39 |
| L | 34–36 | 86–91 | 40–42 |
| XL | 37–39 | 94–99 | 43–45 |
| XXL | 40–42 | 102–107 | 46–48 |
This product has sold out 4 times in the last few months. The current promotion runs while stock lasts.
SaunaShield™ is designed if you want to protect your fertility and support healthy testosterone levels during your sauna sessions.
Several studies confirm that prolonged heat exposure can affect fertility.
The built-in cooling pack keeps your protected area cool throughout the entire session — not just during the first few minutes, like many generic cooling underwear. This way, you can keep up your sauna routine worry-free, knowing you're also protecting what matters most for your future.
The underwear is made of 100% cotton, with no synthetic materials. At sauna temperatures, the pores dilate and the skin absorbs whatever comes into contact with it more easily: pure cotton ensures natural breathability and prevents contact with microplastics, which are often found in synthetic fabrics. It’s a simpler—but also more effective—choice for this type of use.
Just freeze the cooling pad for a couple of hours and slip it into the inner pocket of your underwear—it’s as simple as zipping up a zipper.
Once you put them on, you’ll immediately feel an intense cooling sensation, which settles into a pleasant, constant coolness within a few minutes. When the effect starts to wear off, just replace the insert with a new one from the freezer—that’s why we recommend always keeping two on hand, so the cooling lasts throughout your entire session.
SaunaShield™ is available in all sizes, with an elastic waistband that comfortably fits most body types. The fit is designed to be snug enough to keep the pack in contact with your skin even when you’re sitting or moving around. If you’re unsure between two sizes, choose the one that feels more comfortable: a size that’s too tight can restrict circulation, while one that’s too loose may cause the pack to lose contact with your body.
More than 13,342 men use SaunaShield™ to protect their balls.
Heat has a cost. Your sperm pays it.
There's a reason your testicles hang outside your body. Sperm can only be made a few degrees cooler than the rest of you. That's why they sit where they sit.
A sauna erases that in minutes. The heat pushes the one area built to stay cool far past its limit, and sperm production pays for it.
And it doesn't bounce back overnight. A full sperm cycle takes around 70 days to rebuild. So the heat from this week is still with you months from now. Every session you sauna unprotected, the clock starts over.
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You're building testosterone. Heat is spending it.
Testosterone is one of the most important markers of male health. Your energy, your drive, your recovery, your edge. Everything runs on it.
And it's made in the exact same place heat hits hardest. The cells that produce your testosterone sit right there with everything else that needs to stay cool. Push them past their limit and production slows down.
So the sauna cuts both ways. You're in there to optimize, but the heat quietly works against the one system that drives all of it. You train for it. You sleep for it. You recover for it. Then you cook it.
A complete cooling system, built into premium underwear.
SaunaShield™ holds two reusable cooling pads in a secure zip pocket, positioned to sit exactly where protection is needed.
Freeze them, zip them in, and the cold stays locked on target for your entire session. No shifting, no melting mess, no holding anything in place.
The rest of you takes the heat. One area stays protected the whole way through.
Goodbye microplastics.
Most cooling briefs cut corners where it matters most: the fabric against your skin.
Cheap synthetic blends shed microplastics, and in a hot sauna your pores are wide open, drinking in whatever touches them. You went in to protect yourself. You shouldn't walk out with plastic in the one area you came to shield.
SaunaShield™ is 100% cotton where it touches you. Breathable, natural, nothing to absorb. And the cooling pads are BPA-free and non-toxic, so the part pressed closest to you is clean too.
Protection is the cold and what touches your skin.
How it works?
Freeze.
Zip.
Sauna.
FAQ
How does sauna heat affect fertility?
Testicles are temperature-sensitive. During sauna sessions, heat can raise the temperature in that area and may negatively impact sperm quality, motility, and overall fertility markers. SaunaShield™ is designed to help reduce that heat exposure with targeted cooling.
How does SaunaShield™ protect me in the sauna?
SaunaShield™ uses a frozen cooling pad placed inside a secure front zip pocket. The pad sits where heat protection matters most, helping create a cooler zone while the rest of your body still gets the full sauna experience.
How many cooling pads come with my order?
Each order includes 2 reusable cooling pads. You can keep both frozen, use one per session, or swap pads during longer sauna routines.
What materials are used?
SaunaShield™ is built with a premium 100% cotton boxer body, a secure front zip pocket, and BPA-free, non-toxic reusable cooling pads. The system is designed for comfort, stability, and repeated sauna use.
How long does the cooling last?
Cooling time depends on sauna temperature, session length, and how long the pad was frozen. For longer sessions, use the second pad as a backup. The goal is simple: keep the area cooler during real sauna use, not just for the first few minutes.
Will the pad feel too cold on my skin?
No. The pad is designed to sit inside the front pocket, so you get a cooling effect without placing loose ice directly on your skin. It should feel controlled, not painful or uncomfortable.
How do I wash the boxer?
Remove the cooling pad before washing. Machine wash cold and air dry, or tumble dry low. Do not wash the cooling pad inside the boxer.
What if I don’t like it?
You can try SaunaShield™ risk-free. If it does not feel right for your routine, you are covered by our 30-day return policy.
