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Supporting better conditions for what matters most.

W e  
h e l p  
m e n  
b e c o m e  
f a t h e r s

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More than 50 million men worldwide are affected by fertility challenges. Temperature is one of the factors that can influence sperm production, and creating optimal conditions matters. Coolmen combines wearable comfort with innovative cooling technology designed to support male reproductive health.

H e a t   m a t t e r s   m o r e   t h a n   m a n y   p e o p l e   r e a l i z e .   E v e r y d a y   f a c t o r s   s u c h   a s   p r o l o n g e d   s i t t i n g ,   t i g h t   u n d e r w e a r ,   s a u n a   e x p o s u r e ,   h e a t e d   c a r   s e a t s ,   a n d   e l e v a t e d   l o c a l   t e m p e r a t u r e   m a y   a f f e c t   t h e   e n v i r o n m e n t   i m p o r t a n t   f o r   s p e r m   p r o d u c t i o n .   P a y   a t t e n t i o n   t o   h e a t   e x p o s u r e   a n d   s u p p o r t   m o r e   o p t i m a l   c o n d i t i o n s   f o r   r e p r o d u c t i v e   h e a l t h .

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Prolonged sitting

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Heated car seats

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Sauna esposure

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Prolonged sitting

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Heated car seats

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Sauna esposure

Spermatogenesis is a continuous 24/7 process while a complete sperm development cycle takes approximately 3 months. Designed for everyday comfort, Coolmen can be worn throughout the day and even during sleep.

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Meet the new CoolMen

The world's first wearable medical device for active testicular cooling

P r e c i s i o n   C o o l i n g

D e s i g n e d   f o r   E v e r y d a y   L i f e

CoolMen isn’t just another gadget. It is a certified Class I medical device developed in accordance with MDR (EU 2017/745), combining science, comfort, and wearable innovation C o o l M e n i s n t j u s t a n o t h e r g a d g e t . I t i s a c e r t i f i e d C l a s s I m e d i c a l d e v i c e d e v e l o p e d i n a c c o r d a n c e w i t h M D R ( E U 2 0 1 7 / 7 4 5 ) , c o m b i n i n g s c i e n c e , c o m f o r t , a n d w e a r a b l e i n n o v a t i o n

Explore the scientific research behind temperature, heat exposure, and their impact on spermatogenesis and male reproductive health

S o m e   m o m e n t s   c h a n g e   e v e r y t h i n g
Every journey is different. For many couples, building a family starts with hope, patience, and creating the best possible conditions for the future.
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Join the early access list and secure priority access to the first production run of the CoolMen Founder Edition.Limited to just 200 Founder Edition units worldwide. First shipments begin September 2026.

B e c a u s e  
s o m e  
d r e a m s  
a r e  
w o r t h  
e v e r y  
s t e p

Frequently Asked
Questions

What is COOLMEN and what is it used for?

COOLMEN is a wearable medical device designed to support male reproductive health through controlled scrotal cooling. Elevated scrotal temperature may negatively affect sperm production and sperm quality. COOLMEN is designed to help create more favorable conditions for spermatogenesis while maintaining comfort during everyday use.

How does COOLMEN work?

The user places COOLMEN in the dedicated underwear pocket and connects the device to a power source. The cooling process starts automatically. COOLMEN uses temperature control technology designed to help achieve and maintain a predefined temperature range during use.

How long should I use COOLMEN to notice results?

Sperm development is a continuous process, and a complete sperm production cycle typically takes approximately 3 months. Individual results may vary depending on many factors including lifestyle, health condition, and underlying causes affecting fertility.

How long should I wear COOLMEN?

For consistent support, COOLMEN is designed for extended daily use. Longer daily use may help support more favorable conditions over time. Many users may choose to wear the device for several hours during normal daily activities and during sleep if comfortable.

Who can use COOLMEN?

COOLMEN may be suitable for men who:


• Have semen parameters outside reference ranges.
• Are trying to conceive.
• Want to proactively support male reproductive health.
• Want to support favorable conditions for sperm production.
• Have conditions associated with increased local temperature exposure.

Are there any medical contraindications for COOLMEN?

Use of COOLMEN may be contraindicated depending on the user’s medical condition, history, or current health status.


Absolute contraindications

• Damaged skin in the scrotal area
• Absence of testicles
• Testicular cancer


Relative contraindications

• Fever or temporary medical conditions affecting body temperature
• Recent cosmetic procedures in the treatment area
• Use of COOLMEN as a replacement for medical diagnosis or treatment prescribed by a physician

How do I keep COOLMEN clean?

COOLMEN is made from high-quality materials designed for everyday use. The underwear and cooling insert can be washed either by hand or in a washing machine at 30°C (86°F) according to the care instructions.

Should COOLMEN be used in specific positions or situations?

No special position is required. COOLMEN is designed for use during everyday activities and normal movement.