• 7-pack of beige Bamboo Lyocell men’s boxers for fertility health, breathable comfort, and sustainable living.
  • Rear view of Mr. Fertyl’s beige men's boxer's, designed with fertility-safe bamboo Lyocell for breathable, non toxic comfort.
  • Front view of male model in beige Mr. Fertyl bamboo Lyocell boxers, showcasing breathable, non-toxic fertility-safe fabric.
  • Male model wearing beige bamboo Lyocell boxer shorts, back view showcasing fabric fit and drape.
  • Male model in beige Mr. Fertyl bamboo Lyocell boxer shorts, front pose with arm across chest.
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The Fertility Boxer

The Fertility Boxer

$250.00 USD
$280.00 USD $250.00 USD
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Taxes included.
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Product Description

Fertility-First Design – Made with Bamboo Lyocell to support reproductive wellness.

Soft & Breathable Fabric - Ultra gentle on your skin for all day comfort.

Fully Covered Waistband - Zero skin irritation, just pure softness where it matters.

Chemical-Free - Hypoallergenic and OEKO-TEX® certified for safety and peace of mind.

Sustainably Sourced Materials - Eco-friendly Bamboo Lyocell, better for you and the environment.

Durable & Easy Care - Maintains shape and softness, wash after wash.

Materials & Care

Mr. Fertyl Underwear are crafted with the utmost care, combining comfort, sustainability, and durability:

Materials:

95% Bamboo Lyocell: Ultra soft, breathable, and sustainable.

5% Elastane with Fully Covered Waistband: Added stretch for a perfect fit without touching your skin.

Care Instructions:

  • Machine wash on a gentle cycle using cold or warm water (max 40°C).
  • Use mild detergent. Avoid bleach or fabric softeners.
  • Tumble dry on low or hang to dry.
  • Do not iron.

For best results and long-lasting softness, we recommend hand washing in cold water.

Shipping & Returns

We ship all orders through USPS to ensure reliable delivery. Once your package leaves our warehouse, it’ll be on its way to you and should arrive within 2-8 business days.

Fertility Fit Guarantee

  • If you ordered a multi-pack, try on just one pair to check the fit.
  • If it doesn’t fit, return the 'try on' pair and the rest unopened within 30 days for a refund or store credit.
  • Single-pair orders are final sale and non-refundable if worn or washed for hygiene reasons.

Free First Time Exchange

  • If it’s your first order, we’ll cover the cost of your first exchange for a different size.
  • Applies to multi-pack orders only (since we allow trying one pair).
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Oeko-Tex® Certified

Free from harmful chemicals and safe for sensitive skin

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Fertility-Focused Mission

Our Commitment to You

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Low Environmental Impact

Made using 99% water and solvent recovery for a cleaner process.

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Sustainably Sourced Materials

Crafted with responsibly grown bamboo to protect the planet.

300+ Happy Customers, No Toxins

"Consider This Your Sign To Upgrade. You'll Feel The Difference."

"I'm Literally Throwing Out His Old Ones Because These Are Just Better."

"Never Going Back To The Cheap Stuff."

"Seriously, Once You Try These, You Won't Go Back."

"They Feel Nice. They Feel Very Comfortable."

"Most Brands Use Synthetic Materials That Trap Heat."

"Way Cooler, Way More Comfortable."

"Consider This Your Sign To Upgrade. You'll Feel The Difference."

"I'm Literally Throwing Out His Old Ones Because These Are Just Better."

"Never Going Back To The Cheap Stuff."

"Seriously, Once You Try These, You Won't Go Back."

"They Feel Nice. They Feel Very Comfortable."

"Most Brands Use Synthetic Materials That Trap Heat."

"Way Cooler, Way More Comfortable."

"Consider This Your Sign To Upgrade. You'll Feel The Difference."

"I'm Literally Throwing Out His Old Ones Because These Are Just Better."

"Never Going Back To The Cheap Stuff."

"Seriously, Once You Try These, You Won't Go Back."

"They Feel Nice. They Feel Very Comfortable."

"Most Brands Use Synthetic Materials That Trap Heat."

"Way Cooler, Way More Comfortable."

Insights from Leading Experts

"Men could improve their sperm production by easily changing their type of underwear."

Dr. Lidia Mínguez-Alarcón, PhD, MPH

Reproductive Epidemiologist at Harvard T.H. Chan School of Public Health

"It [Bamboo] releases approximately 35% more oxygen and absorbs 40% more carbon dioxide than equivalent stands of trees."

Dr. Hans Friederich, FRGS

Director General of the International Bamboo & Rattan Organization

"Fertile men can be rendered azoospermic (sterile) by wearing the polyester sling. It is a safe, reversible, acceptable, and inexpensive method of contraception in men."

Dr. Ahmed Shafik, MD, PhD

Professor of Surgery & Urology (Cairo University)

"Bamboo is one of the most successful plants on earth… a phenomenon of the vegetable kingdom. It can also add significant solutions to environmental problems to its list of successes."

Dr. Keith Laidler, PhD

Environmental Scientist, Author, & Film-Maker

"It’s been standard advice given to men in fertility clinics throughout the world that they wear loose fitting underwear."

Richard Quinton, MA, MD, FRCP(E)

Consultant Endocrinologist and Senior Lecturer at Newcastle University

"Phthalates, used to make plastic soft and flexible, are of paramount concern… and so have the strongest influences on the male side, for example diminishing sperm count."

Dr. Shanna Swan, PhD

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

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Why Make The Switch

Mr. Fertyl

Traditional Underwear

Organic Cotton

Fertility-Focused Design

The Gold Standard of Sustainability

The Safest Choice for Skin

Ultimate Breathability & Climate Control

Antimicrobial & Odor-Resistant

Unrivaled Durability

The Most Premium & Luxury Feel

FAQ

Our underwear is made with 95% Bamboo Lyocell for softness and breathability, and just 5% Elastane for stretch and durability. To prioritize comfort and safety, the waistband is fully covered, ensuring the elastane never comes into direct contact with your skin. We've intentionally kept the elastane content minimal to maintain optimal stretch while maximizing airflow.

Our underwear is thoughtfully designed in the USA and ethically manufactured in China, ensuring high quality and sustainable practices every step of the way.

No, our underwear is pre-shrunk and crafted to maintain its shape and fit, even after repeated washes. Just follow the care instructions for the best results.

Yes, we offer hassle free returns and exchanges to ensure you’re completely satisfied with your purchase. Check out our returns policy for more details.