Skip to content
°TGA-registered medical device

Cooler
by design.

Men's health underwear with a patented breathable airflow pouch — engineered to hold the testes 2–3°C cooler, all day, every day.

Cool Beans men's health underwear with breathable mesh pouch
2–3°C

Cooler at the pouch

TGA

Registered device

0%

Polyester

100%

Comfort guarantee

°The case for cooler

Most fertility advice is out of your hands. Temperature isn't.

Heat is one of the few fertility factors you can actually change — and Cool Beans works on it every day, quietly, without you thinking about it.

The pouch holds everything supported away from the warmth of the thighs, so the testicles can self-regulate — cooler, drier, and free from compression.

Built for  Trying to conceive · Active & performance · Recovery · Desk-bound days · Cyclists & riders

40%

of fertility challenges involve a male factor.

1 in 7

couples face difficulty when trying to conceive.

2–3°C

cooler at the pouch, held away from the warmth of the thighs.

°Shop the range

Find your perfect fit.

Find your perfect fit.

Men's health underwear engineered to keep things at the right temperature — pick your waist size and pouch size, then wear it daily.

£43.99 · per pair
Shop Cool BeansBundle & save — 10% off 2–4 pairs, 20% off 5+
TGA-registered · 100% comfort guarantee
Cool Beans boxer briefs with cooling mesh pouch
°The science

Cooling, by patented design.

Cool Beans holds the scrotum supported away from the insulating warmth of the thighs. Its patented mesh pouch lets the testicles self-regulate — cooler, drier, and free from compression.

This minimises thermal insulation and sweat-induced skin issues, safeguarding against overheating while keeping you comfortable all day.

Temperature, compared
Core body 37°C
Conventional briefs 36°C
Cool Beans pouch 34°C

Up to 3°C cooler at the pouch

°How it compares

Not all underwear is built the same.

Briefs trap heat. Boxers let everything move. Cool Beans is the only one engineered to cool, support and hold position — without sperm-damaging polyester.

Find your fit
Briefs Cooling
briefs		 Boxer
shorts		 Cool
Beans
Keeps testes cooler
Improves airflow around the testicles
Holds testes away from the body
Keeps everything in place, without slippage
Promotes sperm health
Free from sperm-damaging polyester
°Size & fit

Measure once, fit perfectly.

Measuring diagram: a ruler placed behind the relaxed scrotum
01

Place a ruler behind your relaxed scrotum.

02

Align one edge of your scrotum — the widest part — to the edge of the ruler.

03

Your pouch size is where your scrotum ends on the ruler.

04

Refer to the table to find your Quokka, Koala or Wombat fit.

° Official Cool Beans measuring guide

Step 1 · Dial in your pouch size

7.0cm
Koala · Standard pouch
QUOKKAKOALAWOMBAT
5678910

Step 2 · Pick your waist size

Size M fits a 77–82 cm · 30–32 in waist.

° Your Cool Beans Koala pouch · Waist M

Borderline? Cool Beans come up slightly smaller and tighter due to the elastic fabric, so consider sizing up — and opt for the larger pouch. We can't accept returns once underwear packaging is opened.

°Our story

Started by Saara, built for men.

Cool Beans began with a simple observation: men's underwear hadn't kept up with men's health. Saara set out to fix that — designing a cooler, more comfortable pouch, then doing the work to make it a registered medical device.

Breathable airflow
Keeps things cooler
All-day comfort
Medical-grade design
°Questions

Asked quietly,
answered plainly.

The pouch separates and supports while an open, breathable mesh lets air move and body heat escape — instead of holding everything close like conventional underwear.

Yes. Cool Beans is registered with the TGA and listed on the ARTG in Australia — designed and made to medical-device standards, not as ordinary apparel.

Everyday wear for men who are trying to conceive, who are active, recovering after a procedure, sitting for long stretches, or cycling and riding often.

Two parts: choose your waist size from S–XXXL, then measure your pouch size with a household ruler. The fit guide above walks you through both in under a minute.

Quokka (snug, 5–6.5cm), Koala (standard, 6.6–8.5cm) and Wombat (roomy, 8.6–10cm). Most men sit in Koala.

Cool Beans come up slightly smaller and tighter due to the elastic fabric, so size up and choose the larger pouch. We can’t accept returns once underwear packaging is opened.

Sperm take roughly 74 days to develop, so Cool Beans is designed to be worn consistently. Think of it as a daily habit rather than a one-off.

Yes — it’s soft and supportive, and most men forget they’re wearing it. It’s built to feel like good underwear first, with the cooling built in.

A breathable blend of bamboo, cotton and elastane, with a four-way stretch mesh pouch that does the cooling work.

For hygiene reasons we can’t accept returns once underwear packaging is opened. If you’re unsure on fit, reach out before you buy and we’ll help you choose.

Every pair is backed by our 100% comfort guarantee.

Cool Beans is registered with the TGA and available across Australia.

Still unsure? Contact the team — we treat every enquiry confidentially.

A father carrying his son on his shoulders in the sun
°Bundle & save

Stay cool.
Feel the difference.

Wear it daily, the way it's designed to be worn. Most men forget it's even there.

10%

off when you buy 2–4 pairs at checkout.

20%

off when you buy 5 pairs or more.