Use size chart below for slightly relaxed fit.
For snug fit, size down.

Size Chart

PageContent

Every Great Fitting Blank Tee Is
Made of Plastic & Chemicals

Go ahead. Check the tag on your favorite tee.

60% Polyester. 70% Polyester.
Sometimes 100%.

Other Internet Brands

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Other Internet Brands

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Polyester is Plastic. Derived from petroleum.

The same stuff that makes your gas tank run.

That's what's sitting on your skin. All day.
Every day.

The fit is great. The material is garbage.

Cotton? It shrinks. Sags. Smells by noon.

Pick your poison. Or don't.

We found a third option.

I Wanted The
Perfect Fit.

Without The Plastic.

Name’s Chuckie.

I was obsessed with finding the perfect tee.

Great fit. Grips the arms. Hides the gut.

Holds its shape.

I found them. Tons of brands nail the fit.

Then I checked the tags.

Polyester. Polyester. Polyester.

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Other Internet Brands

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Every. Single. One.

They all use plastic to get that fit.

I didn't think much of it — until my wife and I started trying to have a baby.

Year one. Nothing.

Year two. Nothing.

Doctors. Tests. Treatments.

Heartbreak on repeat.

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When you're desperate for answers, you start digging. And I dug deep.

That's when I found out what's actually in our clothes. Our food. Our water.

PFAS. Forever chemicals. Microplastics. Hormone disruptors.

I couldn't undo the years we lost. I couldn't fix everything wrong with modern life.

But I could stop wrapping my body in plastic every single day.

So I decided to solve one thing: the shirt.

  • imgNo more petroleum on my skin.
  • imgNo more plastic that traps sweat & sheds microfibers.

What if I could get that perfect fit without plastic?

That’s when I discovered...

Hemp. Earth’s toughest natural fiber.

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The Problem

100% hemp feels like cardboard.

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The Solution

Blend it with bamboo for INSANE airflow. Add organic cotton for softness.

Everyone told us it was impossible to blend hemp & bamboo.

So we spent over a year in R&D. Blew over $300K.

And created the technology ourselves.

Result: DuraFlow

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51% Hemp

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31% Bamboo

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18% Organic Cotton

0 PFAS. 0 Polyester. 0 Forever Chemicals

The fit you want. The material you deserve.

Patent-Pending. Plant-Based. Zero Plastic.

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We Don't Make Claims.
We Destroy Them.

Test 1
icn

Fire Test

Polyester melts into toxic goo. UndrDog burns clean like a campfire. One's plastic. One's plants.

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Test 2
icn

Fog Test

Blasted fog under both shirts. Polyester trapped it. Heat stays in. UndrDog? Fog flows straight through.

300% more breathable than cotton.

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Test 3
icn

BB Gun Test

Fired at a balloon inside each shirt. Other shirts? Shredded. UndrDog? Balloon survived.

4x stronger than cotton.

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Test 4
icn

Pool Float Test

Throw it in a pool. While other shirts soak up everything, ours floats. That's DuraFlow™ — it moves moisture out instead of trapping it in. No sweat patches. No stink. No soaked-through look by noon.

Guaranteed for life.

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What Happens
When You Wear It

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line
iconDay 1
  • You put it on.
  • Your arms look bigger.
  • Your gut looks smaller.
  • She notices.
iconWeek 1
  • It's your go-to.
  • No pit stains.
  • No smell.
  • You threw out 2 cotton shirts.
iconMonth 1
  • Washed it 20 times.
  • Still perfect.
  • You stopped buying shirts.
iconYear 1+
  • Still your favorite.
  • Still holding shape.
  • You own 15 now.
  • You're not going back.
line
  • icn1 in 100 Wins a Real Gold Bar

UndrDog Hemp
What's In It

img img
icn

51%

Hemp

Strength. Shape. Won't quit.

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31%

Bamboo

Breathes. Wicks. Kills stink.

icn

18%

Organic Cotton

Soft. Comfortable. Done.

icn

0%

Polyester

No plastic.
No synthetics.
No garbage.

Engineered To Make
You Look Fn Sexy

Engineered To Make
You Look Fn Sexy

icn

Arms: line line

Grips tight. Looks bigger.

icn

Chest: line

Holds shape. No sag.

icn

Gut: line

Hangs loose. Hides the belly.

icn

Hem: line line

Curved. Makes you look taller.

You look like you lift. Even if you don't.

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What We
Obsessed Over

img

Stitch
Density

img

Fabric
Drape

img

Hem
Curvature

img

Arm
Taper

img

Stretch
Recovery

img

Collar
snapback

img

Chemical
Free Softness

img

Durability

img

Airflow
Mesh

img

Gut
Hiding Fit

img

Bicep
Grip

img

Sweat
Resistance

img

Odor
Prevention

img

Shape
Retention

img

Wash
Durability

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Result?

A shirt that gives you insane confidence and changes
how you carry yourself.

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Why 250,000 Men
Made The Switch

star

Rated 4.9 | 8200+ Reviews

quote
star

"My wife's first response was 'I really like that shirt on you.'"

Michael H. icnVerified Review

quote
star

"I'm an electrician. I destroy shirts. This one won't die."

James C. icnVerified Review

quote
star

"Started buying these after my doctor told me to reduce chemical exposure. Now it's all I wear."

Greg M. icnVerified Review

quote
star

"I work in IT but I sweat like I'm pouring concrete. This shirt handles both."

David T icnVerified Review

quote
star

"I'm retired. I've got nothing to prove. But damn this shirt makes me look like I still do."

Larry K, 61 icnVerified Review

quote
star

"I now own 12 of these. Not joking."

Anonymous icnVerified Review

quote
star

"Wore it under my vest for 18 months straight. No smell, no wear."

Mike R. icnVerified Review

quote
star

"Florida heat. Outdoor job. Every other shirt is soaked by 10am. Not this one."

Marcus D. icnVerified Review

quote
star

"Thought it was just marketing hype. Wore it one day. Ordered 6 more that night."

Chris W. icnVerified Review

Stop Wasting
Money

Old Way

img

6 shirts/year × $30

=

$180/year

  • img

    They last 6 months.

  • img

    Repeat forever.

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    10 years = $1,800 on garbage.

UndrDog Way

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6 shirts × $37

=

$222 Once

  • img

    They last 30+ years.

  • img

    10 years = $222

  • img

    Done

You Save

$1,578

Your "cheap" shirts cost you

$60/year.

A $37 shirt that lasts a lifetime

$1.23/year.

You do the math.

FREE GOLD BAR

With 1 in 100 tees

1 in 100 Shirts
Wins Real Gold

  • Not a gimmick.

  • 1-gram gold bar. .9999 fine. Worth ~$200.

  • Randomly inserted.

  • You buy a shirt. You might strike gold.

  • Either way, you win.

Lifetime. No BS.

  • Rips? We replace it.
  • Fades? We replace it.
  • Stretches? We replace it.
  • Loses shape? We replace it.

Free. For life.

What Happens
When You Wear It

  • Comfortable?

    Yes. Soft, breathable, midweight. Not stiff.

  • How is it breathable AND durable?

    Hemp = strength. Bamboo = airflow. Together = unstoppable.

  • Will it fit my body type?

    We designed it for real men, not mannequins. Hugs where it should. Hides where it needs to.

  • Odor-free?

    Bamboo + hemp kill bacteria naturally. No stink.

  • Lifetime warranty - seriously?

    Seriously. We replace it free. Forever.

Strong Men Don't
Wear Weak Shirts

You've been settling for garbage.

Shirts that stretch. Sag. Stink. Die.

This one doesn't.

It grips your arms.

Hides your gut.

Lasts decades.

And it's made from plants, not plastic.

You're one of us.

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  • icn1 in 100 Wins a Real Gold Bar
  • 250,000+ men trust it

  • Lifetime warranty

  • 30-day Moneyback Guarantee

  • Free shipping on 3+

  • Patent-pending DuraFlow™

  • Zero polyester

  • 250,000+ men trust it

  • Lifetime warranty

  • 30-day Moneyback Guarantee

  • Free shipping on 3+

  • Patent-pending DuraFlow™

  • Zero polyester

  • 250,000+ men trust it

  • Lifetime warranty

  • 30-day Moneyback Guarantee

  • Free shipping on 3+

  • Patent-pending DuraFlow™

  • Zero polyester

  • 250,000+ men trust it

  • Lifetime warranty

  • 30-day Moneyback Guarantee

  • Free shipping on 3+

  • Patent-pending DuraFlow™

  • Zero polyester

EARTH’S LIFETIME TEE:

HEMP. BAMBOO. NO PFAS. GRIPS ARMS. HIDES GUT.

EARTH’S LIFETIME TEE:

HEMP. BAMBOO. NO PFAS. GRIPS ARMS. HIDES GUT.

Hemp is legit! Insanely breathable, soft, durable, and somehow hides my gut” - Daryn T.

1 in 100 Gets Free Gold Bar
Choose Your Size:
metric-icon
ST. PATRICK'S DAY SPECIAL OFFER
Select Pack:
1 in 100 wins a gold bar

Pre-order your UndrDog Hemp to get
the next available batch. Next batch ships:

December 12 SOLD OUT
January 23 97% SOLD
January 29 0% SOLD
🎉 St. Patrick's Day Sale Savings auto-applied.
Buy 3+ for FREE Shipping

Lifetime Guarantee
Material

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
Size & Fit
  • 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.
Washing

Just wash and dry it like any other shirt—no special care needed. The fabric's durability and shape retention stay strong, even after multiple washes and machine drying on low heat.

Lifetime UndrDog Warranty

Don’t like the fit? Don’t like the material? Simply contact support@undrdoghemp.com for an easy return. Unmatched Lifetime Warranty. Yep… we’re that cocky confident.

Are There Others Colors? How does UndrDog Work?

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.

Size Chart

Real gold. Real odds.

1 in 100 comes with
A FREE 1g gold bar

Gold Bar

1g of .9999 fine gold

Worth ~$200 (based on spot price)

Randomly inserted 1 in 100

Delivered straight in the shirt package

No purchase necessary, see details below

View Full Terms & Conditions

Customer Reviews

Frequently Asked Questions

I Dare You To Ask…

Will it be comfy?

How can it be breathable AND durable?

What makes it odor/stink free?

Just normal washing?

What's so unique about DuraFlow™?

Why use hemp, bamboo, and cotton?

Lifetime warranty—really?

What makes it wrinkle-free?

How sustainable is this shirt?

What’s UndrDog’s big vision?

Trusted by 250,000 Men
Become An UndrDog
Lifetime Warranty
Buy 3 = Free Shipping