There are several issues with traditional underwear and how sperm health is impacted.  In traditional underwear, the scrotum is held up next to the body, absorbing the body’s core temperature and, while seated, the scrotum is insulated by the thighs.  On average, the testes are 2°C warmer when seated than standing and a mere 1°C increase in testicular heat can decrease fertility by up to 14%.  Cool Beans has been designed with your testes in mind to ensure support and comfort, unlike traditional underwear, which only house the testes, a bit like a couples of peaches rolling around the car boot.

Our underwear has a patented design, with an entirely new structure and fit to any other underwear globally. With years of research put into the design we have the comfiest undies available on the market and is the world’s first scientifically designed underwear dedicated to keeping the testes at optimal temperature to improve sperm health, aiding in the treatment of skin conditions, assisting with post-operative recovery, and can enhance your aesthetics and confidence! Not your average underwear!

Many alternatives miss the mark on the science behind health underwear. For example, cooling underwear achieve a cooler environment for the testes by using polyester fabric. BUT Polyester has now been scientifically proven to interact with scrotal hairs causing an electrostatic field to be created, which causes microwaves to penetrate the testes, damaging and possibly killing sperm. Cool Beans is made from a bamboo/cotton/elastane composition and a nylon elastane mesh.

And besides, if you are serious about improving sperm health why would you compromise?

It takes on average 72 days for sperm to develop and mature. In order to create an optimal environment and allow sperm to mature, we recommend wearing Cool Beans for a minimum of 3 months prior trying to conceive with 4 months being optimal. Improving the environment within the testes does not happen immediately.

Simply, place a bank card or ruler behind your scrotum (so one edge of the card/ruler is aligned with the edge of your scrotum). Next, refer to the diagram below. Depending on where the other side of your scrotum ends determines the pouch size suited to you.

Cool Beans Underwear can be washed as normal so no need for any special treatment. While line drying is ideal, Cool Beans is a cotton/bamboo blend and is easier to care for than bamboo underwear and can be tumble dried if required due to the added structural stability from the added cotton fibres.

When wearing Cool Beans Underwear, the testicles are held forwards from between the legs, so comfort is pretty much guaranteed. No more getting a little “caught” and trying to find a place to adjust yourself discreetly while avoiding embarrassment. Our early testers also noted that the overall presentation of the underwear when being worn was not only practical and comfortable but pleasing to the eye!

At this time, only one promotion code can be applied per Cool Beans Underwear order. To redeem a special offer, enter your promo code while in your shopping cart or during checkout. 

To redeem a special offer, enter your promo code while in your shopping cart or during checkout. After entering the offer code, adjustments will be made to the eligible products and will be displayed in your order summary.
If you are having trouble, make sure to double-check that the terms of the promotional code you’re using are eligible with the items you have in your cart.

We don’t require you to sign for your delivery. 

We offer free standard delivery for packs of 3 or more in Australia/New Zealand and anywhere else in the world for packs of 5 or more.

Our FAQ page will be expanding in the coming weeks. If you need further help and calling from Australia please call 1800 223 267 during business hours or send us a message from our contact page. If you live outside Australia you can reach us via the contact page. 

Cool Beans



Cool Beans



Money Back Guarantee

If you are not entirely satisfied with your Cool Beans Underwear, simply return the unworn underwear for a full refund.

easy care

Easy Care

Made with a unique blend of bamboo and cotton, Cool Beans Underwear can be washed as normal. Line drying is recommended.


Outstanding Comfort

Cool Beans Scientifically designed underwear has been created with comfort in mind. You won’t ever want to wear your regular undies again.


Free Delivery

We offer free standard delivery for packs of 3 or more in Australia/New Zealand and anywhere else in the world for packs of 5 or more.

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