Fertility

The Hidden Fertility Crisis

Drastic Male Sperm Decline
Global sperm counts have dropped by over 50% in the last 50 years. This isn’t just a statistic—it’s a wake-up call for the next generation.
The Invisible Threat
Over 90% of people have detectable levels of hormone disrupting chemicals (EDCs) in their bodies. Imagine 9 in 10 people unknowingly carrying invisible toxins.
The Growing Epidemic
1 in 6 couples globally experiences infertility—that is as likely as your car failing to start 1 in every 6 trips, yet this silent crisis rarely gets the attention it deserves.

Most Underwear Traps Heat & Exposes You To Toxins. Ours Protects Fertility With Breathable, Toxin Free Fabric

Stop Sperm Decline - Upgrade Your Underwear Today

Oeko-Tex® Certified

Free from harmful chemicals and safe for sensitive skin

Scientifically Backed Design

Crafted to minimize heat and maximize breathability

Expert-Inspired Fabric

Inspired by insights from fertility research and expert recommendations

Fertility-Focused Mission

Our Commitment to You

Our Fertility First Solution

With alarming trends in fertility decline, we created underwear that not only covers your skin but protects your future.

Designed with reproductive health in mind, our Bamboo Lyocell fabric is hypoallergenic, breathable, and free of harmful chemicals - promoting better circulation and reducing heat where it matters most.

In addition, our closed-loop production process ensures a safe, residue free fabric with moisture wicking and antibacterial properties to support optimal health.

Discover the Feel of Fertility-Focused Underwear

Why Choose Mr. Fertyl?

Front view of black bamboo Lyocell men’s underwear by Mr. Fertyl, showcasing a breathable, fertility-safe design.

Thermometer icon symbolizing body temperature regulation through breathable, heat-regulating bamboo Lyocell fabric.

Enhanced Heat Regulation

Protects Fertility by Keeping You Cool

Excessive heat is a leading cause of reduced sperm count and quality. Our ultra-breathable Bamboo Lyocell fabric helps regulate temperature, keeping you cool and creating an environment that supports healthy sperm production.

Toxin-Free Materials

Prevents Hormonal Disruption

Hormone disrupting chemicals (EDC's) can interfere with reproductive health. Our fabric is free of pesticides, formaldehyde, and other harmful toxins, ensuring your body is safe from substances that harm hormone balance and fertility.

Minimalist leaf icon representing eco-friendly, plant-based bamboo Lyocell used in Mr. Fertyl underwear.

Naturally Hypoallergenic

Gentle on Sensitive Skin

Skin irritation and inflammation can impact overall health, including fertility. Bamboo Lyocell’s hypoallergenic properties reduce irritation, fostering a calm and balanced environment for your most sensitive areas.

Blood drop icon symbolizing hormone health, circulation, and toxin-free underwear supporting male fertility.

Advanced Moisture-Wicking

Prevents Fertility-Impacting Bacteria

Moisture buildup creates the perfect conditions for bacteria that can harm reproductive health. Our fabric wicks moisture 4x faster than cotton, keeping you dry and maintaining a clean, fertility-friendly environment.

Icon represents breathability & airflow-highlighting the cooling comfort of bamboo Lyocell fabric to support male fertility.

Exceptionally Breathable Design

Promotes Circulation Where It Matters

Proper airflow supports healthy circulation, which is essential for hormone balance and optimal sperm production. Our breathable fabric promotes healthy airflow, helping to reduce moisture buildup and irritation for a more comfortable, fertility-friendly environment.

Design icon featuring a ruler-representing precision sizing and comfort-focused fit engineered to support male fertility.

Specifically Designed for Fertility Support

Maintains a Fertility-Friendly Balance

Bacterial overgrowth can disrupt the delicate balance essential for reproductive health. Our fabric is designed to naturally resist odor-causing bacteria, helping to maintain a cleaner, healthier environment that supports fertility.

Still Have Questions? Check Out Our FAQ

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Why We Matter

"Men occupationally exposed to BPA have shown decreased sperm quality, reduced libido and higher rates of erectile dysfunction."

Dr. Shanna Swan, PhD

Award-Winning Scientist Based at Mt. Sinai (New York, NY)

"If men wear tight underwear, the temperature around the testicles is increased, and that can have detrimental effects on the quality and the number of sperm."

Dr. Alex Polyakov, MBBS

Clinical Director of Melbourne IVF and Senior Lecturer at University of Melbourne

"Any exposure [to heat] that significantly increases temperature is likely to affect spermatogenesis (sperm production)…"

Dr. Jorge Chavarro, MD, ScD

Associate Professor of Nutrition and Epidemiology at Harvard T.H. Chan School of Public Health

"PFAS can disrupt our reproductive hormones and have been linked with delayed puberty onset and increased risks for endometriosis and polycystic ovary syndrome."

Dr. Damaskini Valvi, MD, PhD, MPH

Assistant Professor of Environmental Medicine and Public Health at Mount Sinai and Nationally Recognized PFAS Expert

"These days, polyester is a commonly used synthetic material for underwear. It has been shown to hold in heat and is less breathable than other materials. The testicular temperature may rise due to such material, leading to scrotal heat stress."

Dr. Akta Bajaj, MBBS, MD

Senior Consultant & Head of Obstetrics & Gynecology at Ujala Cygnus Group of Hospitals

"Polyester is basically plastic and can break down into microplastics, which can release a lot of chemicals that can be absorbed effectively from the scrotal skin."

Dr. Arunima Haldar, MD, MBBS

IVF & Reproductive Medicine Specialist