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Earth’s Most Satisfying Midweight Tee
THE HEMP & BAMBOO BREATHABLE TEE THAT LASTS LONGER THAN YOUR MORTGAGE
Without toxic PFAS ☠️ Forever-Chemicals
No PFAS
No Polyester, No Microplastics
Breathable
Bamboo's Superpower
Comfortable
Satisfyingly Soft
Hides Gut
Grips High, Loose Below
Durable AF
Hemp Strength
Lifetime Guarantee
Buy Once, Wear for Life
Hey, I’m Chuckie!
Founder of UndrDog Hemp.
Making the World's Strongest Shirt
I had one goal - to create the World’s Strongest Shirt with a Lifetime Guarantee.
Also, fit to grip my biceps and hide the gut.
Hemp was the answer, right? Earth’s toughest fabric.
But 100% hemp shirts were like wearing cardboard. Not comfortable, breathable, or practical for real life.
The Search for Perfection
I needed something durable, breathable and comfortable.
First attempt… I blended hemp with polyester.
BOOM—created the world’s strongest shirt with a lifetime guarantee.
It wasn’t super breathable, but UndrDog Hemp took off. Success!
But then, everything changed…
The Wake-Up Call
After four years of trying to have a baby with my wife, I researched why things weren’t working.
I came across something linked to infertility that I didn’t expect to see: Polyester.
Specifically, the PFAS chemicals it contains. Along with links to cancer, birth defects, and a host of other health problems.
Research says wearing polyester leeches toxic microplastics straight into our bloodstream.
Felt like someone ripped my heart out!
I kept digging, and here’s the cold, hard truth about the health risks caused by PFAS and microplastics:
Cancer:
Increased risk for liver, kidney, and testicular cancer.
Shrinkage:
Yeah, shrinkage in all the wrong places–your taint, balls, and penis.
Infertility:
Links to reproductive issues and infertility.
Hormone Disruption:
It lowers testosterone, sex drive, and muscle growth.
Brain Degeneration:
Linked to memory loss, cognitive decline, and Alzheimer's.
Birth Defects:
Linked to preterm birth, low birth weight, and developmental delays.
The Pivot
I had a choice: keep selling toxic shirts like everyone else, or fix it.
I chose to do better.
I went back to the drawing board with one question…
How to make a strong, breathable and comfy shirt with a lifetime guarantee WITHOUT toxic chemicals.
Goodbye Polyester, hello Bamboo!
It breathed like a dream, airflow-heaven, soft and comfy, but it was weak.
So I thought,
“Why not combine Hemp’s strength and Bamboo’s breathability?”
No method existed to blend these two magic fibers successfully. So, we created the technology.
After almost a year of trial and error, we created something that had never been done before.
Enter: DuraFlow™ – our innovative, patent pending technology blending hemp, bamboo, and organic cotton.
The most satisfying midweight shirt - Durable, breathable, and comfortable—Like a man-hug without feeling weird.
The Forever Tee–without forever chemicals
Durable:
Hemp strength and shape retention.
Breathable:
Stay cool, no sweat pits or odor.
No Toxic Chemicals:
PFAS-free–from seed to shirt.
Lifetime Guaranteed:
Built to last—no more fast-fashion trash.
Sustainable:
Made from 100% eco-friendly materials that protect our planet.
Comfortable:
Most satisfying shirt you’ll experience.
That's how the Forever Tee was born—a shirt that won’t fall apart, won’t poison you, doesn't cost a fortune, or needs replacing!
Plus, a fit sculpted to make you look f’ing jacked.
Hides Gut & Man Boobs
“UndrDog shirts high-five every muscle; even your shadow will flex and turn people on”
Hemp’s firm resilience clings to your body in all the right places.
Unbeatable Breathability
“UndrDog Shirts don't just breathe; they give air permission to pass through.”
Stay cool with Bamboo's natural breathability airflow.
4x Stronger Than Cotton
“When your UndrDog shirt enters the wardrobe, cotton shirts unravel themselves in fear.”
High-tensile hemp makes this shirt almost indestructible.
300% More Sweat Resistant than Ordinary Cotton Tees
“UndrDog shirts don’t just resist sweat; they make it evaporate in awe.”
Hemp creates a natural barrier that is moisture-wicking (keeping you dry and smelling better than you should)
What Exactly Is It?
Engineered with our patented DuraFlow™ Tech (patent pending)
51% Hemp. 31% Bamboo. 18% Organic Cotton.
Hemp = 9x stronger than cotton
Bamboo = breathable + anti-stank
Cotton = just enough softness to keep it cozy
Absolutely zero:
Polyester
PFAS
Microplastic shedding
Endocrine-disrupting garbage
We Don’t Just Make Claims.We Prove It.
We blasted fog under both tees to see which one breathes.
UndrDog? Fog flows straight through like a breeze.
Poly shirts? Fog chokes, clogs, and gets trapped.
More airflow = less sweat, less stink, more comfort.
We lit up two tees — Polyester vs UndrDog.
Poly? It’s just plastic. It curled, melted, and dripped like toxic candle wax that smelt like poison.
UndrDog? Burned naturally and smelt like a campfire. No plastic-poison toxic smell!
We loaded a balloon inside, lined up the shot, and pulled the trigger.
Other shirts shred. UndrDog holds.
Balloon intact. Tee still looks f’ing great.
We fired an arrow at a polyester shirt and an UndrDog tee
Polyester? Fly right through it like butter
UndrDog? Took the hit. Bounced off from Hemp’s durability. Strongest fibers on earth. Shirt still flexing.
We stuffed a balloon inside our tee and dropped a kitchen knife from 3 feet.
Other shirts? Pop.
Ours? Balloon lives.
We tossed it in a pool next to a cotton tee.
UndrDog floats 3x longer, absorbing 300% less water.
Why it matters: Less sweat, less stink, less cling.
We handed it to the strongest guys we know and said,
“Go ahead—rip it.”
No rips. No stretch. Just frustrated bodybuilders.
Washed. Dried. Beat up. Repeated 100 times.
No fade. No sag. No shrink.
Still hugs the arms and hides the gut like day one.
The Verdict?
UndrDog isn’t just a shirt. It’s a weapon-grade textile.
Proof is in the footage.
Why UndrDog Hits Different
Other brands sell 20 shirt styles.
We sell one. Because one is enough when it’s built right.
We obsessed over:
- Stitch density
- Fabric drape
- Hem curvature
- Arm taper
- Stretch recovery
- Collar snapback
- Chemical-free softness
- Durability
- Airflow mesh
Result?
A shirt that will give you insane levels of confidence and change how you carry yourself.
Why You Actually Need This
You think your shirts are fine… until you put this one on. Then suddenly you’re wondering:
“Why doesn’t anything else fit like this?”
“Why do my other tees smell like mildew after one wear?”
“Wait… are my arms actually bigger or is it the cut?”
Spoiler: It’s the cut.
This tee does more for your confidence than your protein powder does.
What to Expect
Day 1
You’ll put it on and get a “Damn, you lift?” even if you don’t.
Week 1
It’s your go-to. No stink. No sag. Compliments incoming.
Month 1
You’ve washed it 5x. Still looks brand new. You’ve thrown out 4 cotton shirts.
Year 1+
It’s still your favorite. Still holding shape. Still outperforming everything else in your closet.
Did you know?
Before it got banned in the 1930s, hemp powered 80% of clothing—strong, sustainable, unmatched.
Then, in a blink…
Hemp was sidelined, victim to political greed and propaganda.
Their motive?
Kill hemp, boost profits from cotton, timber, and synthetics–Now three of the world’s most polluting industries!
Their Playbook Used From The 1930’s Until The Tables Turned In 2018 and today:
17th-18th Century
Hemp's Golden Era: Fuels 80% of World's Textiles, Shipbuilding, and Exploration.
1935
George W. Schlichten patented first hemp decorticator machine to improve hemp processing.
1936
Anti-hemp propaganda launches to protect synthetic industry interests.
1937 Marijuana Tax Act
Penalizes hemp, crippling potential.
1970 Controlled Substances Act
Wrong classification sidelines benefits.
1980s-1990s
Legal restrictions overshadow eco-advantages.
2018 Farm Bill
Legalizes hemp, acknowledging safety and versatility.
2024: Undrdog
Boldly elevating men's fashion with premium shirts to restore hemp's heritage.
Lifetime Guarantee:
Buy Once, Wear For Life
The average man spends $180 a year on fast-fashion cotton trash. Smart men choose quality over quantity.
- Ages like fine whiskey
- Holds shape for 30+ years
- No expiry date - refund anytime
“I sweat a lot and this shirt wicks the sweat away, breathes well and isn’t too hot. It keeps its shape and never smells bad. Best shirt ever! Ordering 2 more!”
BLACK FRIDAY SPECIAL OFFER
“The hemp hype is legit! Insanely breathable, durable, and I look f’n jacked” - Daryn T.
BLACK FRIDAY SPECIAL OFFER
UnderDog Hemp: 51% Hemp, 31% Bamboo, 18% Organic Cotton
No PFAS, microplastics or cancerous chemicals.
Crafted with DuraFlow™ tech - blends hemp’s strength and bamboo’s breathability into a satisfying forever-shirt without forever-chemicals.
- Weight: Midweight comfort with max airflow
- Stronger Wear: 4x stronger than cotton
- Super Breathable: Stay cool with Bamboo airflow
- Moisture-Wicking: Draws sweat, stay dry
- Holds Shape: No sag or stretch for 30 years
- Wrinkle-Resistant: Easy low maintenance
- Eco-Smart: All natural fibres–No plastic
- Comfort Level: High comfort that lasts
- Fade-Resistant: Holds color, no fading
- Affordable: Out lasts 10 ordinary tees
- Sun-Safe: Natural UV protection
- Hypoallergenic: Allergy & irritation-free
- Fit: Perfectly tight on the arms and chest, loose around the gut. Look jacked regardless of your size.
- For a slightly relaxed fit, we recommend using your usual size. For a snug fit, size down.
Don’t like the fit? Don’t like the material? Simply contact support@undrdoghemp.com for an easy return. Unmatched Lifetime Guarantee. Yep… we’re that cocky confident.
This is “Project 001: Midnight”. The only project available to the public. It’s UndrDogs’ Coat-of-Arms. After purchase, you’ll join thousands in the Undrdog collective with unlocked access to future ‘limited edition’ projects (different colors, styles, designs, etc).
Use size chart below for slightly relaxed fit.
For snug fit, size down.
Real gold. Real odds.
1 in 100 UndrDog shirts comes
with A FREE 1g gold bar
1g of .9999 fine gold
Worth ~$200 (based on spot price)
Randomly inserted 1 in 100 shirts
Delivered straight in the shirt package
No purchase necessary, see details below
View Full Terms & Conditions
Customer Reviews
Avoid Shrinkage
Better for Your Manhood
Protect your boys from harmful chemicals and shrinkage caused by leaching microplastics in polyester and chemically dyed cotton shirts.
Statistic:
PFAS in plastics have caused a 50% drop in sperm counts and can lead to penile, testicle and taint shrinkage!
UndrDog's 5 Quality Checks
Thanks to innovative DuraFlow™ Technology
Breathability & Comfort
- Breathable: Optimized airflow design
- Odor Resistant: Antibacterial properties
- Midweight: Instant satisfying comfort
- Softness: Lasting Hemp-bamboo comfort
Durability Excellence
- Durable: Hemp strength + Midweight GSM
- Heavy Duty: Extra double-stitched hems
- Tough: Resists tearing and abrasion
Earth-Friendly & Sustainable
- Eco-Friendly: No polyester, biodegradable
- Anti-Pollution: Clean land, air & oceans
- PFAS-Free: Chemical-Free, sustainable
Advanced Performance
- hape Stable: No sag, stretch or shrink
- Wrinkle Free: Drys so no ironing needed
- Skin-Safe: UV protection & hypoallergenic
Style Excellence
- Tailored Fit: Grips up high, loose below
- Modern Look: Curved front & bottom hem
- Identity: Recognizable brand emblem
Frequently Asked Questions
I Dare You To Ask…
Will it be comfy?
How can it be breathable AND durable?
What makes it oder/stink free?
Just normal washing?
Why is “No PFAS & Microplastics” important?
What's so unique about DuraFlow™?
Why this blend—hemp, bamboo, cotton?
Lifetime guarantee—really?
What makes it wrinkle-free?
How sustainable is this shirt?
What’s UndrDog’s big vision?
