Rated 4.9 Excellent (1438)
SaunaShield® Cooling Briefs — Sauna Fertility Protection
Freeze. Insert. Sauna. Keep your sperm in the safe zone.
Freezable gel pack holds testicles at ~ 95°F while your body hits 104°F+ — the threshold where sperm cells start dying
2× BPA-free gel packs included — each lasts 20–30 min, enough for a full session
95% cotton, 5% elastane, no synthetics against your skin when pores are wide open at 176°F+
See it in action
A: Each pair comes with 1× cooling briefs and 2× BPA-free freezable gel packs. Keep one in the freezer while you use the other.
A: 20–30 minutes per gel pack — enough for a full sauna session. Jump in the cold plunge to recharge a thawed pack between rounds.
A: Check the size chart above. If you're between sizes, go up. The briefs should be snug enough to hold the pack in place but not restrictive.
A: Full refund within 30 days, no questions asked. We'll even cover return shipping.
Customer Testimonials
Real experiences from real customers who love our products and service.
18 million to 41 million. The numbers speak for themselves
My urologist told me my count was 18 million and that sauna 4x a week was probably the issue. Started wearing these every session and didn't change anything else. Three months later my count was 41 million. Motility improved too. I never stopped sauna-ing once. That says enough for me.
I thought this was a scam. I was wrong.
When my mate sent me the link I thought it was one of those instagram scam products. Underwear with an ice pack? Come on. But the research on heat and sperm properly rattled me so I ordered a pair. The cooling is subtle — more like a consistent cool zone than a bag of frozen peas. Forgot I was wearing them after 5 mins.
Bought these for my husband. Best purchase I've made this year.
We've been trying to conceive for 6 months and his GP said the sauna habit wasn't helping. He refused to stop going so I bought these as a compromise. He says they're actually comfortable and doesn't notice the pack after a few minutes. More importantly I'm not lying awake worrying every session is setting us back.
Goodbye wet flannel, hello actually working solution
Used to bring a cold wet flannel into the sauna and just kind of sit on it. Looked ridiculous, dried out in about 5 minutes, and if im being honest it wasn't really doing much. This is a proper upgrade. The cooling actually lasts the whole session, you don't have to hold anything in place, and you don't look like a weirdo sitting on a wet cloth. Simple product that just works.
15 minutes to 24 minutes. First session
Used to bring a cold wet flannel into the sauna and sit on it. Looked ridiculous, dried out in 5 minutes, and wasn't really doing much. This is a proper upgrade. Cooling lasts the full session, nothing to hold in place, and you don't look like a weirdo on a wet cloth. Simple product that just works.
Not cold. Not uncomfortable. Just... right.
I normally tap out around 15 mins because the heat gets uncomfortable down there specifically. First session wearing these I hit 24 minutes without even clock watching. The cooling removes that discomfort completely so you can focus on breathing and getting the full benefit. I've since hit 30 mins twice which I'd never done before.
I measured it. 8-9°C cooler. Here's the data.
Was worried a frozen gel pack against your skin would be too much. It's not. The cotton creates enough barrier that it's more of a pleasant coolness than anything sharp. Feels quite nice when you first sit down actually. I'm a 33 waist, went Medium — snug but not tight. Pack doesn't move around at all.
It just works. Ordering two more.
I track everything so I tested this properly. Same sauna frequency, duration, diet and supplements — only variable was adding the briefs. Infrared thermometer showed the pouch area 8-9 degrees cooler than surrounding skin. At-home sperm test went from moderate to normal range after 10 weeks. The cooling is real and measurable.
4 months, 40+ washes. Still going strong.
Using mine 3x a week for four months now. No stretching, no fading, elastic still solid. Gel packs freeze and thaw perfectly every time. The zip on the pouch is surprisingly high quality too — smooth every time, never catches. Only gripe is I wish they did a 3-pack because laundry gets old
The cold plunge recharges the pack. Genius.
I do 3 rounds of sauna and cold plunge so needed something that survives the full protocol. The gel pack cools you through the sauna round, then the cold plunge basically recharges it. By round 2 and 3 the pack is still working because the plunge reset it. Non-negotiable part of my sauna kit now.
Your Sauna Habit Is Quietly Wrecking Your Sperm
Regular sauna sessions are proven to suppress sperm count, motility, and morphology. Studies show that just 2 sessions per week can significantly impair fertility, and it takes 2–3 months of zero heat exposure for levels to return to baseline.
Every time you step into 80°C+ heat, your testicles are pushed well beyond the 35°C threshold where sperm cells begin to die. And that counter resets every single session.
You shouldn't have to choose between the longevity benefits of heat therapy and your reproductive health.
Targeted Protection So You Can Sauna Without the Trade-Off
(Insert Brand Name) Cooling Briefs create a localised thermal barrier between the heat and your testicles. A specially engineered front pouch holds a freezable gel pack flush against your body — keeping the boys in the safe zone while the rest of you gets the full benefit of the heat.
No more subconscious anxiety. No more cutting sessions short. Just pure, uncompromised heat therapy.
How It Works
Follow these simple steps to get started
Freeze
Pop the gel pack in the freezer for 45–60 minutes before your session. Each pair comes with 2 packs so you always have one ready.
Insert
Slide the gel pack into the zippered front pouch. The snug fit keeps it flush against your body with zero sliding or bunching.
Sauna
Step in and push your limits. The cooling pack maintains testicular temperature in the safe zone for 20–30 minutes while you get the full benefits of the heat
Freeze
Pop the gel pack in the freezer for 45–60 minutes before your session. Each pair comes with 2 packs so you always have one ready.
Insert
Slide the gel pack into the zippered front pouch. The snug fit keeps it flush against your body with zero sliding or bunching.
Sauna
Step in and push your limits. The cooling pack maintains testicular temperature in the safe zone for 20–30 minutes while you get the full benefits of the heat
Why Thousands of Men Sauna With Protection
Engineered for the men who take both performance and fertility seriously.
Fertility Shield
Keeps testicles at ~35°C while your core temp rises to 40°C+. Protect sperm count, motility, and DNA integrity.
Longer Sessions
Remove the subconscious heat anxiety holding you back. Users report 5–10 minutes longer per session on average.
Premium Comfort
95% cotton means maximum breathability when your pores are wide open. No synthetic toxins against your skin at 200°F.
Cold Plunge Ready
Keep them on through your cold plunge to re-cool a thawed pack. Works seamlessly with contrast therapy protocols.
Our Impact Statistics
Our Impact Statistics
73%
Sperm Drop
Reduction after regular sauna use
35°C
Safe Zone
Optimal testicular temperature for healthy sperm production
40°C
Sauna Temp
Internal body temperature during a typical sauna session
30 Min
Protection
Active cooling per gel pack
Here's How We're Different
Compare and see the difference
Briefs
Without
Targeted testicular cooling
Keeps the boys at ~35°C while your core temp climbs
Hands-free protection
No holding, adjusting, or repositioning mid-session
No mess or dripping
No wet towels, no melting ice, no puddles on the bench
20–30 min consistent cooling
Engineered to last a full session, not fade after 5 minutes
Works through cold plunge
Cold water recharges the gel pack between rounds
Works through cold plunge
Glass skin in just 2 hours
Protects fertility long-term
Sauna as often as you want without the reproductive trade-off
How Our Product Helps You
The Cooling Pouch
A multi-layer insulated front pouch holds the gel pack securely against your body. The zippered design means zero sliding, zero bunching, and zero adjustments mid-session. Just insert and forget.
Premium Cotton Construction
When you're in 90°C heat, your pores are wide open and absorbing everything. That's why we use 95% premium cotton — no polyester, no nylon, no synthetic toxins. The 5% elastane is there purely for structural integrity to keep the pouch secure.
Freezable Gel Packs**
Each pair ships with 2× BPA-free, non-toxic gel packs. Freezes in under an hour, stays cold for 20–30 minutes, and re-freezes hundreds of times. Keep one in the freezer while you use the other.
Try Them Risk-Free for 30 Days
We're confident you'll feel the difference from your first session. But if for any reason you're not completely satisfied, return them within 30 days for a full refund. No questions asked. No hoops to jump through. We'll even cover return shipping.
ADD TO CART
100% Satisfaction
Fast Shipping
Easy Returns
Try Them Risk-Free for 30 Days
We're confident you'll feel the difference from your first session. But if for any reason you're not completely satisfied, return them within 30 days for a full refund. No questions asked. No hoops to jump through. We'll even cover return shipping.
ADD TO CART
100% Satisfaction
Fast Shipping
Easy Returns
Frequently Asked Questions
Find answers to common questions about our products, shipping, returns, and more.
Q: How does sauna actually affect my fertility?
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A: Sperm cells begin dying at temperatures above 35°C. During a typical sauna session, your internal body temperature can reach 40°C+. Studies show that regular sauna use (2+ sessions per week) can significantly reduce sperm count, concentration, and motility. It can take 2–3 full months of zero heat exposure for levels to recover — and that counter resets each time you sauna.
Q: How long does the cooling last?
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A: Each gel pack maintains cooling for approximately 20–30 minutes — enough to cover a standard sauna session. Even after the pack thaws, it continues providing thermal insulation. For longer sessions, you can swap in your second gel pack.
Q: What are the briefs made of?
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A: 95% premium cotton, 5% elastane. We prioritised natural fibres because at 80°C+, your pores are wide open and absorbing everything. The minimal elastane provides the structural integrity needed to keep the cooling pouch secure against your body.
Q: Can I wear them into a cold plunge?
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A: Yes, and we recommend it. The cold water re-cools a thawed gel pack, extending its life. They work perfectly with contrast therapy protocols.
Q: How do I prep the gel pack?
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A: Freeze for 45–60 minutes before use. Each pair comes with 2 packs so you always have one ready in the freezer.
Q: How do I wash them?
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A: Remove the gel pack. Machine wash cold. Hang dry or tumble dry low. The gel packs can be wiped clean with soap and water.1
Q: What size should I get?
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A: Check our size chart above. If you're between sizes, we recommend sizing up for comfort. The briefs should be snug enough to hold the cooling pack in place but not restrictive.
Q: Do you ship internationally?
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A: Yes — we ship worldwide. Orders are dispatched within 2 business days. US delivery is typically 3-5 days.