No supplements or injections, just natural active cooling.
Still Not Sure You Need It?
You shouldn't have to decide from a product page.
Use our cooling briefs in your actual daily routine for 30 days.
Freeze the Active Cooling Core™, wear it and decide for yourself whether targeted, hands-free cooling deserves a permanent place in your routine.
If it doesn't, use our 30-day money-back guarantee for a full refund.
(Customers are responsible for shipping costs)
Less than 0.5% of customers use our money-back guarantee.
Materials
Body constructed from 100% Cotton.
YKK zippers made in Japan.
Waistband made from cotton/elastane blend.
Comes with 2× Freezable Cooling Inserts per pack.
Inserts are made from woven nylon and contain a water/silica based gel (BPA Free & Non-Toxic).
Shipping information
Please allow 5–12 business days from shipping confirmation for your order to arrive. You’ll receive a tracking number via email as soon as your order has been dispatched.
Verified buyer
“Bro. I've been icing my balls for 6 nights so far and all I can say is WOW. Getting random boners during the day. Feel like I'm 16 again. Also love the rage it gives me pre-workout”
Chester B.
Size chart
Size
Waist (in)
Waist (cm)
S
26.5 to 29
68 to 74
M
29 to 32
74 to 82
L
32 to 34
82 to 87
XL
34 to 37
87 to 94
XXL
37 to 40
94 to 102
Measure around your waist at hip height, just above the waistband of your underwear.
*We recommend sizing up if you are between sizes, or have larger legs. These are 100% cotton with minimal stretch.
Size Small
$80.00
PURPOSE-BUILT MEN'S COOLING
Loved by thousands of men worldwide.
30-day money back guarantee
We ship worldwide
10,000+ pairs sold
01 / Why Testicular Cooling
You want your drive back. But you don't want to rely on 10 different pills.
High-heat exposure is proven to suppress testicular health. Testicles are designed to operate at a temperature range cooler than the rest of your body which is why they hang outside the body.
Cooling them down helps provide the optimal environment for them to produce testosterone and sperm. Our targeted Active Cooling Core™ lets you implement daily cooling so you can boost your testicular function and increase your naturally produced T.
02 / Materials
Normal underwear is filled with polyester. Our briefs are made with 100% cotton.
Natural, cotton comfort. YKK zippers made in Japan.
What your underwear is made of matters. Especially when you are focused on optimising testicular health.
Instead of using polyester, spandex and other petrochemical derived fabrics, we opted for natural fibres.
That’s why our cooling briefs use 100% premium cotton designed to remove your exposure to microplastics in your underwear.
Most underwear and shorts rely on synthetic blends like polyester, nylon or elastane to add stretch and durability.
We took a different approach: keep the main body natural, breathable and comfortable while the Active Cooling Core™ handles targeted cooling where it matters most.
100% Cotton Body gives you:
Natural skin contact. Premium cotton instead of synthetic body fabric.
High breathability. Lets air move freely during wear.
Natural moisture management. Helps absorb sweat without that slick synthetic feel.
Soft comfort where it matters most. No plasticky performance fabric pressed against your skin.
FAQs
Any last questions?
Do I need to use a sauna?
No. SaunaArmor™ was originally designed for the sauna, but it’s just as easy to use at home. The built-in pocket keeps cooling hands-free while you work, scroll or unwind.
Why not just use a regular ice pack?
Holding an ice pack between your legs gets awkward fast. An awkward routine is one that you won't stick to.
Our briefs holds the cooling insert in place, with a soft 100% cotton lining between the pack and your skin. Less adjusting, no occupied hands, and an easier routine to stick to consistently.
Alternatively, any thermally insulated bag with will help keep them cold when you aren't using them immediately.
Will this increase my testosterone?
Our briefs are designed to make it easy to start testicular cooling. Testicular cooling has not clinically been shown to increase testosterone. All results are anecdotal and not guaranteed.
How long does each cooling pack stay cold?
Each pack is designed to provide roughly 30 minutes of cooling, depending on the temperature around you and how cold it is when you start. That’s cooling duration, not a recommended session length. The recommended session for cooling is 10-15 minutes
Can I wear them under my normal clothes?
Yes. Choose clothing with enough room for the cooling insert to sit comfortably. A relaxed fit is better.
How do I prep the cool pack?
Freeze it for 1–2 hours before use.
What materials are the briefs made of?
Body constructed from 100% Cotton. YKK zippers. Waistband made from cotton/elastane blend. Each pair comes with 2× Freezable Cooling Inserts. Inserts are made from woven nylon and contain a water/silica based gel (BPA Free & Non-Toxic).
How do I wash them?
Remove the gel pack. Machine wash cold. Hang dry or tumble dry low.
Do you ship worldwide?
Please allow 5–12 business days from shipping confirmation for your order to arrive. You’ll receive a tracking number via email as soon as your order has been dispatched.
What customers told us
4.8
Based on 1169 Reviews
“Wasn’t looking for sauna gear at all. Came across these while looking into cooling and nearly scrolled past because of the name. The pocket is the part that made me stop. I can buy an ice pack anywhere, but having a pair of briefs designed to hold one is different.”
Patrick O.
Jun 2026
“My first thought was, who buys special underwear for this? Then I remembered I was sitting there researching ways to put an ice pack in my regular underwear. So yeah. Good quality.”
Liam K.
Oct 2026
“Was comparing these with a little gel pack I already own. The pack itself wasn’t really the issue. It was having to keep adjusting everything whenever I moved.”
Owen S.
Sep 2026
“Been reading about cooling on and off for months. Haven’t committed to any particular setup. These caught my attention because it’s all together rather than buying a pack and then figuring out what to do with it.”
David C.
Jul 2026
“Mostly wanted the pocket tbh.”
Daniel R.
Oct 2026
“Already had an ice pack. Didn’t have a good way to keep it where I wanted it without sitting there holding the thing.”
Tom H.
Oct 2026
“not a sauna guy. was looking for something for home. these work well and are well made”
Rohan P.
Oct 2026
“I’ve got enough bottles in the kitchen cupboard already. Was curious about cooling and liked that this didnt involve taking something else.”
Chris W.
Oct 2026
“Cotton was the main draw for me.”
Ben T.
Oct 2026
“Had to look twice to check the packs were included. They are.”
Sam D.
Oct 2026
“The sauna branding nearly put me off because I don’t use one. I was actually looking into cooling at home. Once I understood what the product was it made more sense, but that wasn’t obvious to me straight away.”
Nathan B.
Sep 2026
“Looks strange. I love using the product though.”
Kai L.
Sep 2026
“Two reusable inserts. Good to know.”
Josh F.
Sep 2026
“Would check sizing carefully. Cotton doesn’t stretch like the stuff I normally wear.”
Anthony C.
Sep 2026
“Less fiddling about Thats what i like the most.”
Hamza A.
Sep 2026
“My mate sent me the link and I assumed it was a joke 😂 ended up buying it and recommending to my friends.”
Jack O.
Sep 2026
“The reusable part matters. Wouldn’t want to keep buying packs.”
Arjun V.
Aug 2026
“I’m fairly picky about underwear. Some ‘performance’ fabrics feel horrible to me, especially around the legs. So I was looking at the cotton and sizing before I even got to the cooling details. I sized up and it fits me perfectly. I got big legs as well.”
Michael T.
Aug 2026
“I’d heard about cooling before, just never looked into how people actually do it. Apparently a lot of ice packs and towels. Can see why someone would make a pocket for one.”
James N.
Aug 2026
“For me the question was pretty simple. Is this easier than what I can put together at home? That’s what I wanted the video to show.”
Marcus E.
Aug 2026
“I’m between sizes which is always annoying with online orders. Read the sizing notes twice. Glad they mention the lack of stretch because I would of just ordered the same size as my other underwear.”
Lucas B.
Aug 2026
“The hands free bit. That’s the appeal.”
Will S.
Jul 2026
“Simple enough idea once you see it.”
Aaron P.
Jul 2026
“Was looking for something external, not another powder to mix.”
Omar K.
Jul 2026
“Honestly more interested in the pocket than any fancy name for the insert. Where does it sit, can you adjust it, how do you take it out. Happy to find out that everything worked well”
Nick R.
Jul 2026
“Cotton body 👍”
Harry G.
Jul 2026
“I’ve bought a few wellness things that ended up in a drawer. Trying not to do that again. Before buying I wanted to picture when I’d actually use these, where I’d keep the inserts and whether the preparation would annoy me. Boring questions probably, but that’s usually what decides whether I stick with something.”
Andrew W.
Jul 2026
“Thought the inserts were extra at first.”
Callum D.
Jun 2026
“I don’t mind that the idea sounds a bit weird. Most people think cold plunges are weird too. I just want a straightforward explanation without having to watch a 20 minute sales video.”
Tariq S.
Jun 2026
“The lining was what I wanted to see. Couldnt tell how the layers worked from the outside photos.”
Jake L.
Jun 2026
“Already curious about cooling. Didn’t need the whole pitch again, just the practical details.”
Vikram N.
Jun 2026
“I don’t have loads of space or patience for more equipment. This looked fairly contained. Briefs and inserts, somewhere to keep the inserts cold.”
Simon H.
Jun 2026
“Basically wanted somewhere for the pack to go.”
Max B.
Jun 2026
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