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@mackweldon
the underwear you don't see — 3 fabrics, 1 no-roll waistband #mackweldon #ad
original sound — Mack Weldon
The viral pair · @mackweldon

The unseen hero of your daily outfit

Make the invisible decision that sets your day off on the right path. No-roll waistbands. Stay-put legs. Three superpowered fabrics. The underwear thousands of guys won't shut up about — now with 20% off your first order and bundle discounts.

12,000+ reviews
2M+
pairs sold
30-Day
Try-On Guarantee
20% OFF YOUR FIRST ORDER OVER $125FREE SHIPPING OVER $15030-DAY TRY-ON GUARANTEEAS SEEN ON TIKTOK20% OFF YOUR FIRST ORDER OVER $125FREE SHIPPING OVER $15030-DAY TRY-ON GUARANTEEAS SEEN ON TIKTOK20% OFF YOUR FIRST ORDER OVER $125FREE SHIPPING OVER $15030-DAY TRY-ON GUARANTEEAS SEEN ON TIKTOK
The 3 fabrics from the video

Same fit. Three superpowers.

Every pair is the same dialed-in fit with stay-put legs and a no-roll waistband. The fabric is where you choose your fight — softness, breathability, or all-day freshness.

18-Hour Jersey from the video Softest
"18-Hour Jersey is super soft"

18-Hour Jersey

All-day softness

Buttery 18-hour modal that feels like nothing on. Broken-in soft from the very first wear.

Cloud-soft
AIRKNITx from the video Most Breathable
"AIRKNITx is breathable, moisture-wicking"

AIRKNITx

Breathable + moisture-wicking

AIRKNITx breathes like mesh and wicks sweat fast — engineered cool zones where it counts.

Cool & dry
Silver from the video Anti-Odor
"and Silver has Anti-odor Ionic+® silver"

Silver

Anti-odor Ionic+® silver

Real silver fibers neutralize odor at the source, so they stay fresh wear after wear after wear.

Stays fresh
All three fabrics share a no-roll waistband
The detail you feel all day

And they all have a no-roll waistband.

The part you don't see is the part that makes the difference. Same engineering across all three fabrics.

No-roll waistband
Engineered to stay put — no folding, no digging, all day.
Stay-put legs
Legs that don't ride up on you throughout the day.
30-day Try-On Guarantee
Wear them, wash them. Don't love them? It's on us.
4.7★ from 12,000+
The pair guys reorder in threes, sixes, and nines.
New customer offer

Get 20% off your first order

Valid on first orders of $125 or more on full-price items. Discount code will be sent to your email and needs to be entered at checkout.

★ TikTok Exclusive Offer

Build Your Bundle

Mix all three fabrics into one pack. The more you build, the more you save — and your 20% new-customer discount stacks on top over $125.

Straight from the comments

2 million pairs can't be wrong.

4.7 · 12,000+ verified reviews
T
Tyrone T.
verified buyer
AIRKNITx

These boxer briefs stay in place. They breathe well, even a little better than the regular AIRKNITx. They are good for working out or sporting activities like hiking. They hold things in place. I like that the waistband doesn't roll.

S
Stephen M.
verified buyer
18-Hour Jersey

Never knew boxer briefs could be so luxurious. Honestly the best I have ever worn. Soft yet durable with the sense they will last forever and never wear out. No regrets at all. Customer for life.

M
Mark P.
verified buyer
Silver

You can wear them on a hot humid 100 degree day and you'll smell as fresh as the winter driven snow.

J
Josef S.
verified buyer
AIRKNITx

More comfortable than I thought possible. Does what it says — breathes, doesn't ride up, and the waistband doesn't fold in or out. And it feels nice against the skin.

Your first order, 20% off

Stop guessing. Start with the bundle.

Pick your three fabrics, stack the discounts, and find your pair — backed by our 30-day Try-On Guarantee.

Build your bundle