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The Hidden Heat Problem in Traditional Underwear & Its Effect on Fertility

Traditional underwear is designed for coverage, but not for testicular health. Its tight fit and lack of airflow press the testicles against the body, trapping heat and raising temperature beyond the optimal range. Studies show that even a 1°C increase in testicular heat can reduce sperm production by 14%, and a 2–3°C rise can halt sperm production entirely. With male fertility declining globally, excessive heat from restrictive underwear, prolonged sitting, and high-intensity activity can further affect sperm quality, motility, and overall reproductive health.


Modern Fertility Struggles


  • Male fertility has been declining by approximately 3% annually.

  • Men play a role in half of all infertility cases.

  • A sedentary lifestyle can lead to increased testicular heat, which may impact reproductive health.

  • Testicular temperature plays a crucial role in male fertility.

  • Poor sperm quality is a major factor in miscarriages.


Testicular Heat and Fertility

  • Research shows that when seated, testicular temperature is around 2°C higher than when standing.

  • Just a 1°C rise in testicular heat may reduce fertility by 14%, while a 2–3°C increase can completely disrupt sperm production.

  • Most traditional underwear keeps the testes pressed against the body, trapping heat and raising temperature.

Why 2BALLZ Underweaer

 

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  • Incorporates a breathable mesh pouch designed to promote airflow.

  • Provides gentle support to the scrotum, allowing it to rest naturally away from the body.

  • Facilitates natural temperature regulation, potentially maintaining a cooler environment.

  • Aims to support overall comfort and well-being by considering optimal testicular conditions.

 

Disclaimer*

2BALLZ SNUG FIT POUCH FOR TOOLS

2Ballz SNUG FIT pouch provides excellent support for your most valuable assets throughout the day! Our SNUG FIT pouch holds your tools and separates them from the body for better comfort, hygiene & lower temperature in the crotch area.

NEXT SKIN MODAL FABRIC

We use 92% TENCEL™ Modal + 5% ELASTANE fabric which is 3x softer than cotton. It is the softest thing you will experience and it has a luxurious feel with unmatched lustre.

COOL & DRY CROTCH AREA

2Ballz proprietary pouch uses a soft 3D mesh fabric which is breathable, quick dry, moisture wicking and provides excellent temperature management to keep your crotch area cool & dry.

RELIEF FROM CHAFING & RASHES

We put special care while stitching to make sure that joints are flat (flat seam stitching) which results in relief from rashes & chafing.

ROLL RESISTANT WAISTBAND

Our waistband is supremely soft and provides unmatched ease around the waist - No rolling, No pinching, and No fat bulges. It is the most comfortable thing around your waist!

ENVIRONMENT FRIENDLY

The modal fibre is derived from a 100% renewable natural resource, allowing it to biodegrade and fully return to nature.