Not great
"These are less comfortable than the other BN3TH versions. Also, the website checkout has dark patterns that present a bait-and-switch in order to capture your phone number. Bad behavior, BN3TH. You can do better."
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Black
The award-winning Pro Ultra is designed for max intensity and elite performance with super premium, lightweight fabric that is highly breathable, supportive, and silky smooth. These Boxer Briefs feature The Original 3D Pouch to ensure everything is separated and supported so you can always put your best foot forward.
The fabric is a breathable, moisture-wicking polyester blend mesh featuring Ionic+® anti-odor technology that does not wash out.
Fabric: 84% Recycled Polyester, 16% Spandex
Free standard shipping is available on all orders above $75 (after discounts and before taxes).
All available shipping options will be visible at checkout. We ship orders within 1-2 business days, but this can increase during promotional periods.
We offer a 30-day return window for all purchases made directly through our website. To submit a return request, please use our online portal: returns.bn3th.com.
For more information, check out our Frequently Asked Questions page.
ENGINEERED COMFORT
WHY WE MADE THIS
SUSTAINABILITY MATTERS
Overall rating: 4.6666665 / 5 from 33 reviews.
AI Generated Review Summary
The Pro Ultra Boxer Brief in Black is praised for its highly breathable, supportive, and silky smooth fabric. Customers appreciate its snug and supportive fit, ensuring comfort and separation.
Summary topics
- Fabric Quality (35%): A significant amount of customers expressed satisfaction with the material, describing it as great, soft, and breathable.
- Fit (15%): A significant number of customers remarked that the fit of the product is snug and supportive without being restrictive.
Review topics: ["fit","material","style","support","pouch","seam","brand","underwear","waistband"].
Review highlights
- "Material is nice and soft and breathable." —
- "Great material, great fit!" —
- "The fit is snug and supportive without being restrictive—no shifting or adjusting mid-workout." —
Reviews
Happiness
"The package says, "Happiness inside," and they weren't lying. Amazing comfort and support. I wanna wear these every day. so glad I got these."
They keep up!
"Great material, great fit! Love them! I’m a master electrician. Moving all day and they are perfectly capable of working with me."
"Good product. Their shipping platform leaves something to be desired"
Awesome
"Love these! I am a master electrician. Moving all day. I Work out at night. These are great for everything I do!"
My favorite of the brand
"My favorite of the brand"
Excellent
"They are sooo comfortable while also being functional. I will definitely be ordering more."
Pouch isn’t as advertised
"The product itself is good and comfortable and made well, but the pouch isn’t as advertised. it doesn’t do a great job of keeping everything in the pouch. It can fall out very easily. Also it says that it “lifts and supports”. it does neither of those and the only thing the pouch does is seperate the genitalia from the legs. just extraction. doesn’t lift though"
"These are the best ones if you were wondering"
Super Soft and Very comfortable.
"By far, the softest, most comfortable pair of active underwear on the market. There is a noticeable difference between the Pro Flex and Pro Ultra. Pro Flex is great for the gym and active sports. However, I could rock the ultras anywhere and that is what makes it priceless."