Optimal Comfort!

iB Underwear features an elastic-free waistband designed to always keep your tummy feeling its best.

Why iB Underwear?

Elastic-Free Waistband!

Ditch your tight elastic and experience optimal comfort with our non-gripping Elastic-Free Waistband. It's designed to eliminate abdominal pressure and alleviate any abdominal discomfort. In other words, it's way more comfortable around the waist!

What else?

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Horizontal Fly
For better access to your valuables.
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Everyday Wear
Made for work, play, or just relaxing.
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Built To Last
Won’t fall apart like multi-pack underwear.

What our founders say:

  • ★★★★★

    " I just wanted to buy underwear that didn't make my IBS worse. To my amazement, nobody made any, so I created my own. And then I threw out all my other pairs."

    Founder

  • ★★★★★

    " These are all my husband wears and all he talks about. He started wearing them and got rid of all his old underwear. That, alone, is worth five stars."

    Founder's Wife

Meet the Founder

I’m Jack, founder of iB Underwear, and I started this company at age 48 because I have Irritable Bowel Syndrome (IBS) and I need the most comfortable underwear imaginable. Having suffered elastic waistbands my whole life, I understand how clothing can aggravate symptoms like bloating, cramping, and abdominal sensitivity. So, I set out to create the most comfortable men's underwear the world has ever seen, and I'm pretty sure I did.

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We Promise

Sustainable packaging

We limit the use of plastic in our packaging. Our paper mailer is completely nontoxic and all natural, even the ink. It will decompose normally and can be recycled or simply thrown away.

100% organic cotton

All underwear panels are made of 100% GOTS-certified organic cotton.

Free shipping info

Free economy shipping on orders of $50 or more. Free standard shipping on orders of $150 or more. Orders typically process within one business day.

30-day returns

Request your return label by sending an email to info@ibunderwear.com.

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About Us

The Story Behind iB Underwear


I’m Jack, founder of iB Underwear, and I started this company at age 48 because I know firsthand the daily challenges that come with living with Irritable Bowel Syndrome (IBS). Having dealt with IBS my whole life, I understand how difficult it can be to find clothing that doesn’t aggravate symptoms like bloating, cramping, and abdominal sensitivity.

 

Tired of uncomfortable elastic waistbands and restrictive designs, I set out to create a solution that’s practical, comfortable, and supportive. iB Underwear is designed specifically for people like me—those who want comfort without compromise. All of our underwear feature a uniquely-made drawstring waistband, allowing you to adjust the fit with precision as needed. Our men's underwear come with a horizontal fly for added ease and flexibility. We prioritize soft, breathable materials and ergonomic designs, so you can feel at ease all day.

 

At iB Underwear, we believe that comfort is key to feeling your best. Whether you have IBS, experience occasional bloating, or just value true comfort, iB Underwear is here for you. Thank you for choosing a brand that understands.

Suggestion Box

If you have a product suggestion or other feedback for us, please visit our Contact section. We'd love to hear from you!