The only Men's Big & Tall Bamboo Viscose Clothing Brand in the World.
4XLT Bamboo Viscose T-Shirts
Finding a 4XLT shirt that fits right is rare - but not here. Big Boy Bamboo t-shirts are long, roomy, and made with ultra-soft bamboo fabric that keeps you cool and comfortable. Whether you’re headed out or hanging at home, you’ll feel like your shirt was made just for you.
Made from our signature 70% organic bamboo viscose and 30% organic cotton blend, these shirts keep you cool, dry, and confident—day or night. And with plastic-free shipping, you're making a better choice for the planet too.
What Makes Big Boy Bamboo Different?
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Made for Big & Tall Men
Generously proportioned sizes from 2XL to 8XL and Tall sizes from 1XLT to 4XLT.
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Incredibly Soft Bamboo Fabric
Premium bamboo viscose blends designed for exceptional softness, comfort and drape.
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Comfort Without Compromise
Room where Big & Tall men need it, with Crew Neck, V-Neck, and Pocket Crew Neck styles.
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Family-Owned. Shipped from Las Vegas.
Big Boy Bamboo is a family-owned American company shipping directly from Las Vegas, Nevada.
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A Brand That Stands Behind Every Shirt
Free U.S. shipping on $100+ orders and our 100% Satisfaction Guarantee.
Why You'll Love Big Boy Bamboo
100% Money Back Guarantee
If you don’t agree that these are the softest, most comfortable shirts, we'll buy them back from you. We'll even pay for the return shipping!
Free Easy Returns & Exchanges
If you ordered the wrong size or just don't like our shirts, that's no problem! We’ll replace them with a size that fits you or take them back with full refund!
Safe, Secure Checkout
Your information (for example, passwords, credit card information, addresses) is private when it is sent to this site.
100% Satisfaction Guarantee
As an internet-based company, we can tell you all day that our shirts are so soft, you won't be able to stop touching yourself... but feeling is believing.
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© 2016-2026, Big Boy Bamboo (Smart Bamboo Technologies, Inc.), Las Vegas, NV. 11 Years of making Big & Tall men feel and look their best!