Lans T-Flow™ New Ball Pouch Boxer Brief
Lans T-Flow™ New Ball Pouch Boxer Brief
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✔ 100% Modal (Zero BPA & Phthalates)
✔ New T-Flow™ Ball Pouch Technology
✔ Supports Testosterone.
✔ Enhances Sperm Production
Thought $32 was crazy. 8 months later, I've thrown out all my old underwear. These still look brand new and I actually saved money. No more adjusting in meetings. Best purchase I've made this year.
I was wearing polyester 16 hours a day without realizing it. Switched to 100% Modal and the difference is huge. Cooler, more comfortable, and no plastic against my skin. Worth every penny for peace of mind.
I forget I'm wearing them. Seriously. Wore them on a 6-hour flight and didn't adjust once. My old underwear would ride up constantly. These just work. I refuse to wear anything else now.
Size Guide
Size Guide
Model is 5'10”, 175 lbs wearing size L
Why $32 for underwear?
Why $32 for underwear?
Because cheap underwear is made with plastic (polyester/nylon) that traps heat and releases microplastics. We use 100% modal fabric that's better for your health and actually lasts. Plus, our 60-day guarantee means zero risk.
Material
Material
100% Modal
Made from beech tree fiber.
No polyester or blends.
How do they fit?
How do they fit?
They run a bit small. If you’re between sizes or like more room, go one size up for the best comfort and fit.
What if they don’t fit right?
What if they don’t fit right?
No worries. You can return or exchange them easily. Just check our return page for details.
How long does shipping take?
How long does shipping take?
Orders usually ship in 1-2 business days. Delivery takes 4-8 days depending on where you live.
Size Chart
Model is 5'10”, 175 lbs wearing size L
"Never going back to polyester again. My energy feels different. this stuff is legit."
Why We Use 100% Modal Not Polyester or Bamboo
Most underwear use polyester or bamboo blends. They feel soft at first but they trap heat and shed microplastics that can mess with your hormones.
LANS uses 100% Modal, made from beech tree pulp. It’s plastic-free, breathable, and naturally soft keeping you cool, dry, and balanced all day.
Modal lets air move freely. No heat buildup. No odor. No tight. No sticky feeling.
It’s 50% more breathable than cotton, lasts through 50+ washes, and stays smooth without fading or stretching.
Once you wear Modal, you’ll never go back to polyester.
When Reviews Look Like This, You Know It’s Real.
Why Modal Outperforms Cotton, Bamboo, and Polyester
| LANS. | Others | |
|---|---|---|
100% Plastic-Free Fabric |
||
T-Flow™ Ball Pouch Technology |
||
Naturally Breathability |
||
Zero Odor & Itch |
||
Retains Shape After 32+ Washes |
||
Supports Sperm Health |
||
Protects Testosterone Levels |
||
Polyester Blend |
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Free Shipping on Orders Over $80
60-Day Money Back Guarantee
LIMITED TIME OFFER: BUY 1 GET 1 FREE
Free Shipping on Orders Over $80
60-Day Money Back Guarantee
LIMITED TIME OFFER: BUY 1 GET 1 FREE
Free Shipping on Orders Over $80
60-Day Money Back Guarantee
LIMITED TIME OFFER: BUY 1 GET 1 FREE
Free Shipping on Orders Over $80
60-Day Money Back Guarantee
LIMITED TIME OFFER: BUY 1 GET 1 FREE
Free Shipping on Orders Over $80
60-Day Money Back Guarantee
LIMITED TIME OFFER: BUY 1 GET 1 FREE
Free Shipping on Orders Over $80
60-Day Money Back Guarantee
LIMITED TIME OFFER: BUY 1 GET 1 FREE
Free Shipping on Orders Over $80
60-Day Money Back Guarantee
LIMITED TIME OFFER: BUY 1 GET 1 FREE
Free Shipping on Orders Over $80
60-Day Money Back Guarantee
LIMITED TIME OFFER: BUY 1 GET 1 FREE
Free Shipping on Orders Over $80
60-Day Money Back Guarantee
LIMITED TIME OFFER: BUY 1 GET 1 FREE
Free Shipping on Orders Over $80
60-Day Money Back Guarantee
LIMITED TIME OFFER: BUY 1 GET 1 FREE
Free Shipping on Orders Over $80
60-Day Money Back Guarantee
FAQs
Will this actually help my testosterone/sperm production?
We're not doctors, so we can't make medical claims.
What we CAN say: Research shows that plastic fabrics and excess heat can negatively impact testosterone and sperm production. Modal is plastic-free and breathable, so it doesn't trap heat like synthetic fabrics do.
Will switching underwear turn you into a superhuman? No. But removing one daily source of hormone disruption can't hurt.
How is this different from Assence bamboo
Great question. Here's the honest breakdown:
Most "premium" underwear brands (including bamboo brands) still use synthetic blends. Check their labels - you'll see polyester, spandex, or nylon mixed in. That's plastic.
We're 100% Modal fabric. Zero synthetic materials touching your skin. Here's why that matters:
- Bamboo viscose = heavily processed and often mixed with polyester
- Cotton blends = usually 5-10% spandex (that's plastic)
- Modal = natural beechwood fiber, no plastic, naturally breathable
Plus, our pouch design is different. It's a true 3D pouch with horizontal access, not just extra fabric sewn in. You get actual room and airflow, not just marketing hype.
Bottom line: If their underwear has ANY synthetic materials, you're getting microplastics. We don't do that.
How is this different from NADS?
Most 'premium' brands still use synthetic blends. We're 100% modal - no plastic, no polyester, no elastane, no spandex touching your skin.
Why switch to Lans Underwear?
Once you try these, you’ll feel the difference. Cooler, softer, and built to last — no going back.
What if I have sensitive skin / eczema / psoriasis?
Modal is one of the softest fabrics out there - softer than cotton, way softer than synthetic blends.
Plus, our flat-lock seams mean no irritation from stitching. No tags. No rough edges.
We've had customers with severe skin sensitivity say these are the only underwear they can wear comfortably. But everyone's different, so that's why we have the 60-day guarantee.
How do I wash these?
Easy:
- Machine wash cold or warm (not hot)
- Tumble dry low, or hang dry
- Don't use bleach or fabric softener
That's it. Modal is way more durable than cotton, so you don't need to baby them.