Take Control of Your Fertility Today
The Underdog makes it easy.
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]
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 body.
The Underdog is engineered to never over-cool.
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.
FEATURES OF THE UNDERDOG
Better Sperm, Better Outcomes.
Are you ready to get started?
Dr. K. J.
Promising enough that we are offering our men the option of using these devices as a part of their therapy for infertility.
Dr. C. L.
Healthy sperm are very sensitive to overheating. The Underdog keeps the testes at the perfect temperature. Wonderful and discrete. Highly recommended.
Quality build and packaging. The ice pack is comfortable enough to use for a few hours straight while keeping its "cool", and inconspicuous enough for the office.
It cools down my balls and raises sperm counts. Would highly recommend to those who want to conceive.
Pretty impressed with this product. First, it comes with two ice packs which is great for a long day. Next, it feels very comfortable when using. Temperature is perfect. Not too cold or hot.
Fertility expert Dr. Charlene Lincoln recommends using The Underdog to improve sperm quality.
The Underdog Mission
Underdog Fertility was founded by three professionals who care deeply about helping others start a family.
With the help of our medical advisory team, 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 US and international utility patents pending.
Underdog, The Underdog, Underdog Fertility and the Dogface Logo are trademarks of Underdog Fertility.
Note: The Underdog 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.