Australian underwear brand unlocking the secrets to boosting male sperm counts as men’s fertility continues to drop worldwide

In a world first new Australian underwear brand Cool Beans Underwear is seeking to address the worldwide problem of declining male fertility and testosterone levels.
Developed and designed by Queensland Mumpreneur and qualified medical researcher Saara Jamieson, Cool Beans is the world’s only medical device underwear designed to support testosterone levels, optimise fertility, and promote overall wellness for men.
Saara and her husband Jordan founded Cool Beans due to their own personal journey through infertility and their eventual success in conceiving was due in no small part to this unique product.
According to Saara their fertility struggles saw them undertake extensive research into the causal issues of male infertility and this saw them develop Cool Beans as a scientifically designed response to male fertility – testicular heat.
“Cool Beans was developed by Jordan and me after multiple years-long battle with conceiving a child as we undertook extensive research into the core reasons behind male fertility,” Saara said.
“What we learned with our research along with extensive product research, is that in a nutshell (pardon the pun) scrotal heat is bad news for testosterone levels. What we created with Cool Beans is a way to keep the scrotum at optimal temperatures for healthy testosterone levels, and our efforts to achieve this has seen us recognised by the Australian Therapeutic Goods Administration (TGA) by being able to show how we solve the issues raised by published journal articles.”
Using extensive scientific literature Cool Beans has been designed to reduce the absorption of core body temperatures and the insulating effect from the thighs. Cool Beans has a unique elasticised mesh pouch to promote airflow and repositions the scrotum, allowing easy dissipation of heat and sweat, and eliminates skin-to-skin contact, which causes chafing, rashes, and overheating.
Designed for both the active and sedentary man—whether on the go, in an office, or competing in sports—Cool Beans helps maintain optimal scrotal temperature, safeguarding testosterone levels and sperm quality in ways no other product on the market achieves.
Research highlights the risks of prolonged sitting or exertion, both of which elevate testicular heat.
Scientists have shown that a mere 20 minutes seated on an office chair or 12-13 minutes in a vehicle, can raise testicular temperatures enough to halt testosterone and sperm production.
For athletes, the risks compound with physical exertion, by addressing these challenges, Cool Beans supports men in achieving their peak mental and physical performance, contributing to vitality, stamina, and mental clarity.
For Saara, the ending of her and her husband\’s story is a happy one as they were able to successfully conceive their children; Van (7) and Heidi (5) – she is now on a mission to help others with a product specifically developed to support men’s health.
“Men’s testosterone and fertility levels are declining at a rapid level due to a combination of factors and what we are doing with Cool Beans is addressing this problem,” said Saara.
“Our solution not only supported our family journey but has also sparked a mission to support men worldwide with a product that promotes daily health and long-term wellbeing. We are an innovative solution for men’s health supporting males in achieving their peak mental and physical performance, contributing to vitality, stamina, and mental clarity.”
A Movement for Male Wellness
Cool Beans is more than just a product—it’s part of a larger commitment to men’s health awareness. As Movember raises awareness of men’s wellness issues, Cool Beans is working to educate the public on vital topics like reproductive health and testosterone decline. Cool Beans invites men and their families to explore how its innovative design can support healthier, more comfortable lives.
For more information on Cool Beans Underwear, visit www.coolbeansunderwear.com.