Trying to Get Pregnant?
Sperm count and sperm quality matter when trying to conceive.
Boost male fertility the natural way.
Introducing The Underdog
The Underdog uses a wedge shaped ice pack and innovative insulation system. This cools the testicles to reverse the overheating from sitting - by 3 degrees Celsius to be exact!
Simply sit, then slide the Underdog between the seat and your pants.
The Underdog is engineered to never over-cool.
Sitting Damages Sperm
Our testicles hang for a reason: to produce healthy sperm, they need cool temperatures.
But sitting, driving, varicocele and high BMI all overheat the testicles. Studies show even mild overheating over time damages up to 90% of sperm and leads to low sperm count, poor morphology, low motility, and DNA fragmentation, any of which can cause male infertility.
[Studies 9, 10, 25, 26]
FEATURES OF THE UNDERDOG
The Underdog Prevents Overheating
The Underdog's gentle cooling keeps testicles out of the temperature Danger Zone when sitting.
This maintains an optimum environment for healthy sperm production.
Healthy sperm are critical for conceiving and for carrying to term, whether trying to conceive naturally or before IVF.
Benefits of The Underdog
Improve Fertility Naturally
Mild & gentle cooling
Non-invasive and no-risk
Use before natural conception
Use before IVF to improve the odds
Ultimate Comfort
Comfortable padded sleeve
Ergonomic wedge shape
Fits all body types
Easy to Use
Small and discreet
Slips easily between the seat and pants
No special underwear
No condensation
Better Sperm, Better Outcomes.
Are you ready to get started?
Testimonials
Expert Recommendations
Trusted Fertility Expert Dr. Marc Sklar Recommends Underdog for Healthy Sperm
Oftentimes, men’s health gets overlooked when it comes to fertility. The responsibility - when it comes to fertility and getting pregnant - more times than not falls on the female partner. Not only is this one-sidedness unfair, it’s also not beneficial to your fertility if you’re struggling and we’re only addressing one half of the problem.
Natural Fertility Expert Dr. Charlene Lincoln Recommends Underdog to Boost Fertility
Dr. Lincoln includes The Underdog in her top tips to boost male fertility naturally. Here she describes the top 7 diet and lifestyle changes including using The Underdog that are key to improve sperm morphology, quantity and motility.
The Underdog Mission
Underdog Fertility was founded by three professionals touched by infertility who care deeply about helping others start a family.
We're on a mission to create practical tools that improve men's health.
Life is short, so let's get started!
The Underdog is protected by Patent No. US 11,540,939 B2, and international patents pending.
Underdog, The Underdog, Underdog Fertility and the dog face logo are trademarks of Underdog Fertility and protected by US registered trademark No. 5,833,529.
The Underdog product is a general wellness device, and is not intended for use in the the cure, mitigation, treatment, or prevention of underlying disease or medical conditions.