"After my prostatectomy, I needed something to hold the leaks, but refused diapers. These are lifesaver, they work wonderfully."
MEN'S LEAKPROOF UNDERWEAR
Everyday Comfort.
All-round Protection.
Soft, premium boxer briefs designed to handle leaks discreetly. Enjoy the comfort of regular underwear, with the freedom to go about your day without the extra worry.
60-Day Guarantee
BUILT-IN LEAK PROTECTION
DISCREET UNDER CLOTHING
7-LAYER ABSORBENT CORE
SOFT BAMBOO-BLEND FABRIC
OPTIONAL WASHABLE INSERT
MADE FOR EVERYDAY WEAR
WASHABLE & REUSABLE
BUILT-IN LEAK PROTECTION
DISCREET UNDER CLOTHING
7-LAYER ABSORBENT CORE
SOFT BAMBOO-BLEND FABRIC
OPTIONAL WASHABLE INSERT
MADE FOR EVERYDAY WEAR
WASHABLE & REUSABLE
BUILT-IN LEAK PROTECTION
DISCREET UNDER CLOTHING
7-LAYER ABSORBENT CORE
SOFT BAMBOO-BLEND FABRIC
OPTIONAL WASHABLE INSERT
MADE FOR EVERYDAY WEAR
WASHABLE & REUSABLE
24/7 Protection, Same Freedom
Inside every pair is a proprietary layer technology to take in moisture and hold it away from your outer clothing, tailored for men.
Fast Absorption
Locks Moisture & Odors
360° Protection
How It's Made
Seven Layers. All-Day Protection
Underhaven combines a soft outer fabric, moisture-moving lining, absorbent core, and waterproof barrier.
95% Bamboo-Blend Outer Fabric
Soft, flexible fabric with 5% spandex for stretch. Designed to fit and move like everyday boxer briefs.
Cotton-Blend Inner Lining
95% cotton and 5% spandex. Soft against the skin, with a lining designed to move moisture toward the absorbent core.
Seven-Layer Absorbent Core
Dense absorbent layers retain moisture. Wider coverage extends all-round when sitting or moving.
PUL Waterproof Barrier
A flexible polyurethane laminate barrier helps stop moisture passing through to clothing.
Featured product
Everyday Leakproof Boxer Briefs
Feel protected all day with discreet protection that feels like the best underwear you own.
Sale price
$39.99
Regular price
$49.99
Low Stock - Selling Fast
Pickup currently not available
Selling out fast
Due to high demand, today's available stock is limited.
THEY TELL IT BETTER
My old guards would fold up against my leg after a couple hours in the truck. The built-in protection stays in place.
"I'd finish in the bathroom, zip up, and get the last few drops afterward. That's exactly what I bought these for."
"Bought a pair for my husband. He liked the fit and asked me to get three more. He rarely says anything about underwear."
Shipping & Guarantee
Orders are shipped with tracking so you can follow delivery from dispatch to arrival.
Orders are usually dispatched within 48-72 hours. Average shipping times vary from 5 to 10 business days, depending on location, time of year or promotional periods.
Available shipping options, costs, and estimated delivery dates are shown at checkout.
We offer a 60-Day Money-Back guarantee. Try it, and if you feel like they are not performing to your liking, send them back for a full refund.
You can find more information about our guarantee in our Return & Refund policies.
How Much Protection Do They Offer?
Underhaven is designed for drips and light-to-moderate bladder leakage. Its seven-layer absorbent construction helps catch and hold liquid, with an optional washable insert for extra coverage.
On it own it can hold 5.07-6.76 fl. oz. (150-200ml) of liquid, with the insert around 10.1 fl. oz. (300ml)
Will They Show Under My Clothes?
Underhaven follows the cut of a regular men's boxer brief. The absorbent area is built into the garment, so there's no loose disposable guard to position or adjust. It does NOT show under regular pants/jeans while correctly using it.
The protective section adds some thickness, but is designed to sit discreetly beneath everyday trousers and jeans. Using the optional insert adds extra coverage for heavier days.
Finding the Right Size
Use the size chart and measure before ordering. The best fit is comfortably snug around the waist and legs, keeping the absorbent area in the correct position.
A loose fit can affect coverage, while an overly tight fit becomes uncomfortable.
If still unsure, please contact support@tryunderhaven.com before purchasing.
BUILT-IN LEAK PROTECTION
DISCREET UNDER CLOTHING
7-LAYER ABSORBENT CORE
SOFT BAMBOO-BLEND FABRIC
OPTIONAL WASHABLE INSERT
MADE FOR EVERYDAY WEAR
WASHABLE & REUSABLE
BUILT-IN LEAK PROTECTION
DISCREET UNDER CLOTHING
7-LAYER ABSORBENT CORE
SOFT BAMBOO-BLEND FABRIC
OPTIONAL WASHABLE INSERT
MADE FOR EVERYDAY WEAR
WASHABLE & REUSABLE
BUILT-IN LEAK PROTECTION
DISCREET UNDER CLOTHING
7-LAYER ABSORBENT CORE
SOFT BAMBOO-BLEND FABRIC
OPTIONAL WASHABLE INSERT
MADE FOR EVERYDAY WEAR
WASHABLE & REUSABLE
Everyday Stories
Don't Take Our Word For It
See what guys like you are saying!
"I had a RALP last year. After the catheter came out, I was going through 3 or 4 Depends a day. I hated the feel of them but had to use it.
Things gradually improved, but I still had small leaks when getting up from a chair or coughing.
Bought 3 pairs of Underhaven and wore them on a 5-hour drive to visit my daughter. Stopped twice, walked around, went out for dinner. Got back with dry jeans.
I haven't bought another box of guards since. Ordered 5 more pairs so I have enough between washes."
Rob L.
Verified Customer
97% customers said they were able to stop using disposable guards during the day.
"I've been using Prevail guards for about 2 years. They absorbed fine, but the adhesive never seemed to hold up through a full day at work.
"I'm an electrician. Lots of climbing ladders, bending down and getting in and out of the van. By lunchtime the pad would be folded over or rubbing against my leg. I was changing them twice a day just because they wouldn't stay put.
Tried the Underhaven boxers on a 10-hour shift. Everything stayed where it should, even working overhead and crawling around under a kitchen sink.
Washed them that night and ordered another 3 pairs. Should have switched a long time ago."
Jack P.
Verified Customer
89% of former pad users said their protection stayed in place without bunching or shifting during daily activities.
"My prostate was removed back in 2016. I'm 76 now. The heavy leakage settled down after the first year, but I still get occasional stress leaks, especially bending down or getting up too quickly.
I'd been wearing Tena guards for years. They worked, but I hated the extra bulk under my golf trousers. I stopped wearing my lighter khakis because the outline was too noticeable.
I've been wearing Underhaven for several months now. The boxers handled everything.
The real test was sitting through lunch afterward without worrying about the back of my trousers. I'm done with the disposable guards for good."
Jake P.
Verified Customer
98% of customers said they could wear their regular trousers without noticeable padding or bulk.
"My husband had TURP surgery for an enlarged prostate last year. The leaking got better, but he still needed some protection.
He absolutely hated the disposable underwear. Said it felt thick under his trousers and refused to wear it when we went out.
I ordered one pair of Underhaven without making a big deal about it. He wore them to his follow-up appointment, then we stopped for lunch and did the shopping.
That evening he asked if they were machine washable because he wanted to wear them again. I ordered the 5-pack.
They're the first protective underwear he's actually willing to wear regularly."
Anne Y.
Verified Customer
96% of customers who purchased for their husbands said their husbands preferred Underhaven over disposable underwear.
Made To Feel Ordinary. Designed for More.
Leak protection should NOT feel bulky or heavy. Underhaven uses regular boxer-brief cut with the protective layers concentrated where they're needed.
How It Compares
UNDERHAVEN vs. Disposable Underwear
See the real differences in strength, absorption, and quality.
All-Day Comfort
Washable & Reuseable
Optional Insert
Designed for Men
Others
Bulky, Awkward
Single Use
Heavy All Day
No Thoughts For Men
FAQs
Frequently Asked Questions
Underhaven is designed for drips and light-to-moderate bladder leakage. Its seven-layer absorbent construction helps catch and hold liquid, with an optional washable insert for extra coverage.
On it own it can hold 5.07-6.76 fl. oz. (150-200ml) of liquid, with the insert around 10.1 fl. oz. (300ml)
Yes, it is especially made for men after prostate surgery who refuse to wear disposeables.
Always follow your clinician's guidance during recovery.
The protective section is thicker than regular underwear, but designed to sit discreetly under everyday clothing.
The main absorbent section is sewn into the underwear, so it stays attached to the garment.
The optional insert sits inside a separate cradle. Correct sizing helps keep the entire garment in position.
The lining is designed to move moisture into the absorbent core. Small leaks should be less noticeable than moisture sitting in regular underwear.
If the garment becomes saturated or uncomfortable, change it - it has probably hit the liquid limit.
The absorbent construction helps contain moisture and odor, so it will protect against both.
Change when necessary and wash after use.
60 Day Money Back Guarantee
Try Underhaven for yourself.
If you're not satisfied, contact us within 60 days to request a refund under our guarantee.
For eligibility, conditions, and complete details, see our Return & Refund Policy.
