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 (3568 Reviews)

PROJECT 000: CLEAN SLATE

MADE WITH PATENT-PENDING DURAFLOW™

"Best shirt I’ve owned. No dye, no chemicals, insanely breathable, durable and hides my dad bod. Hemp’s legit!"-

James. S
1 In 100 Gets Free Gold Bar
 
 
Select a Size

🏆 1 in 100 wins a gold bar

 

Buy 3+ for FREE Shipping

Lifetime Warranty

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 fibers–No plastic
  • Comfort Level: High comfort that lasts
  • Fade-Resistant: Holds color, no fading
  • Affordable: Outlasts 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 snug fit, we recommend using your usual size. For a relaxed fit, size up.

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@.com for an easy return. Unmatched Lifetime Warranty. Yep… we’re that cocky confident.

Are There Other Colors? How does UndrDog Work?

This is “Project 000: Clean Slate”. 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).

Ver informações completas
000: CLEAN SLATE

Before everything, there was nothing.

🔗

No color.

🧬

No chemicals.

👕

No compromise.

Just raw truth.

This is Project 000.

It’s not a number. It’s a mindset. Your reset button.

Live clean, wear clean.

White Tee

The world's first no-dye hemp & bamboo tee.

☢ No color process. ☢ No pigments. ☢ No treatments.

Just pure, unprocessed DuraFlow™ in its natural state.

This is what natural fabric looks like before the world touches it.

Clean Slate Image
Ready To Strip Away

For men ready to strip away the
BS and start clean.

New chapter. New standards. New you.

You don't need color to make a statement.

You need substance.

This is Earth's purest tee. Period.

☒ No PFAS. ☒ No plastic. ☒ No dye. ☒ No excuses.

Same UndrDog
Hemp Material

Same Compliments
and Swag

Only Difference -
No Color

Clean Slate Shirt

Same Chiselled
Shape & Fit

Same Lifetime
Warranty

★★★★★ Trusted by 350,000 Men
See 4th of July Sale
● Lifetime Warranty ● Buy 3 = Free Shipping
👑 Earth's Most Satisfying Midweight Tee

THE HEMP & BAMBOO BREATHABLE
TEE THAT LASTS LONGER THAN
YOUR MORTGAGE

Without toxic PFAS ☠ Forever-Chemicals

🧵

DuraFlow™
Hemp/Bamboo
Material

🚫

Same Non–PFAS
Microplastic Poison

👕

Same Compliments
and Swag

💪

Same Alpha
Chiseled Fit

🏆

Same Lifetime
Warranty

🍁

Only Difference?
No-Dye Color

★★★★★ Trusted by 350,000 Men
Get Your First Tee
🟠 Lifetime Warranty 🟠 Buy 3 = Free Shipping
Free Gold Bar
THE OFFER

1 in Every 100
Include A Real Gold Bar

No gimmicks. No BS. We’re literally giving away solid 1g gold to real customers. Why? Because while fast fashion robs you... UndrDog rewards you. Buy a tee. You might strike gold!

  • 1g of .9999 Fine Gold
  • 💲 Worth ~$200 (Based On Spot Price)
  • 🔀 Randomly Inserted 1 In 100 Orders
  • 🎁 Delivered Straight In The Order Package

Engineered with our DuraFlow™ Tech (patent pending)

51% Hemp. 31% Bamboo. 18% Organic Cotton.

Hemp = 4x stronger than cotton
Bamboo = breathable + anti-stank
Cotton = just enough softness to keep it cozy
Duraflow Tech

Absolutely zero:

✕ Chemical dye
✕ Polyester
✕ PFAS
✕ Microplastic shedding
✕ Endocrine-disrupting garbage
Zero Chemicals

Lifetime Warranty:
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!”

James C. Verified Review
Lifetime Warranty
★★★★★ Trusted by 350,000 Men
See 4th of July Sale
● Lifetime Warranty ● Buy 3 = Free Shipping

Customer Reviews

4.7 ★★★★★

Based on 6,134 Reviews

★★★★★
(4970)
★★★★☆
(615)
★★★☆☆
(327)
★★☆☆☆
(137)
★☆☆☆☆
(85)
Z
ZacharyVerified Buyer
★★★★★

I wasn't expecting much, but this shirt completely surprised me. The fit is athletic without feeling tight, and after several washes it still looks brand new.

United States • 07/07/2026
S
Shawn R.Verified Buyer
★★★★★

I work outside all day and this is the only shirt that doesn't end up smelling by lunchtime. Ordering another pack this week.

United States • 07/06/2026
B
BruceVerified Buyer
★★★★★

The natural color is honestly what caught my attention. It looks clean, premium and goes with everything I own.

Canada • 07/05/2026
J
Joel G.Verified Buyer
★★★★★

I've bought expensive designer tees before and none of them feel this good. This one is softer, heavier and somehow cooler in hot weather.

Australia • 07/04/2026
M
Michael C.Verified Buyer
★★★★★

The collar stays exactly where it should. No stretching, no bacon neck. That's rare nowadays.

United Kingdom • 07/03/2026
D
Daniel P.Verified Buyer
★★★★★

I've tried dozens of premium shirts over the years, but this is the first one that actually delivers on comfort and durability. Worth every cent.

New Zealand • 07/02/2026
R
Ryan M.Verified Buyer
★★★★★

Wore it during a weekend trip in Florida and never felt overheated. The breathability is on another level compared to cotton.

United States • 07/01/2026
C
Chris W.Verified Buyer
★★★★★

You can instantly tell this isn't another cheap fast-fashion tee. The stitching, weight and fit are all premium.

Ireland • 06/30/2026
A
Andrew K.Verified Buyer
★★★★★

I'm pretty picky about clothes, but this one exceeded expectations. Looks clean enough for dinner and comfortable enough for lounging.

Germany • 06/29/2026
T
Thomas B.Verified Buyer
★★★★★

I've washed mine over a dozen times already and it still fits exactly the same. No twisting, shrinking or loose collar.

United Kingdom • 06/28/2026
E
Ethan L.Verified Buyer
★★★★★

I bought one to test the hype and ended up replacing most of my old tees. It feels structured but still soft.

United States • 06/27/2026
JH
Jacob H.Verified Buyer
★★★★★

The lifetime warranty got my attention, but the fabric is what sold me. It feels built to last.

Canada • 06/26/2026
L
Logan T.Verified Buyer
★★★★★

Perfect weight for everyday wear. Not thin, not bulky, and the fit makes my shoulders look better.

Australia • 06/25/2026
N
Nathan D.Verified Buyer
★★★★★

People actually asked me what shirt I was wearing. The natural shade looks different in a good way.

Netherlands • 06/24/2026
K
Kevin S.Verified Buyer
★★★★★

After twenty washes, it still looks like day one. No weird smell, no stretched collar, no regrets.

United States • 06/23/2026

Frequently Asked Questions

I Dare You To Ask...

Will it be comfy?

Absolutely. The DuraFlow™ blend of hemp, bamboo, and organic cotton creates a midweight shirt with a higher GSM, designed for ultimate comfort. It’s breathable, soft, and fitted to enhance the male physique, gripping the body in all the right places to keep you feeling comfortable all day.

How can it be breathable AND durable?

UndrDog combined hemp’s unmatched durability with bamboo’s natural breathability. The result is a shirt that’s tough yet airy, so you stay comfortable no matter what.

What makes it odor/stink free?

Bamboo and hemp both possess natural antimicrobial properties that combat odors, while their moisture-wicking design pulls sweat away from the skin and allows it to evaporate, keeping you dry. No synthetic chemicals, just all-natural performance.

Just normal washing?

Yes, 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.

What's so unique about DuraFlow™?

DuraFlow™ is a breakthrough, patent pending technology and a world-first blend of hemp’s strength, bamboo’s breathability, and organic cotton’s softness. The tri-blend design features a three-strand structure, which is stronger than a two-strand design because it provides even tension and is more stable than a four-strand design, where fibers can conflict.

This perfect balance locks in strength, durability, and breathability, making it the world’s strongest toxin-free tee, with a lifetime warranty. Designed for comfort, built to last.

Why this blend—hemp, bamboo, cotton?

Hemp gives unmatched strength, bamboo provides airflow and comfort, and organic cotton adds softness. Together, they create the most satisfying fabric for durability, breathability, and comfort.

Lifetime warranty—really?

Yes, really! Our tees are built to last a lifetime. If your UndrDog shirt is the wrong size or ever wears out, we’ll replace it with a brand-new one, free of charge. All you need to do is cover the small cost to send it back to us, and we’ll handle the rest. That’s our commitment to quality, ensuring you’re always covered.

What makes it wrinkle-free?

The hemp and bamboo blend naturally resists wrinkles, keeping your shirt looking sharp after a long day or a trip through the wash. The fibers hold their shape, so you don’t have to worry about ironing or ironing out those wrinkles.

How sustainable is this shirt?

100% sustainable. The materials are organic and eco-friendly. UndrDog takes a firm stance against toxic chemicals, microplastics, and unsustainable practices. Their hemp, bamboo, and organic cotton blend ensures minimal impact on the planet, while giving you a shirt that's good for you and future generations.

What’s UndrDog’s big vision?

To redefine the way men think about clothing. UndrDog is committed to creating the strongest, most comfortable shirts on the planet that don't sacrifice sustainability, health, or performance. Their mission is to provide men with a lasting solution to cheap fast fashion, offering stylish, eco-conscious shirts that stand the test of time.

★★★★★ Trusted by 350,000 Men
Become An UndrDog
● Lifetime Warranty ● Buy 3 = Free Shipping