Knox | Men's Leakproof Boxers

Name: Knox | Men's Leakproof Boxers
Brand: Knox Comfort
Price: 29.95 USD
Availability: InStock

Rated 4.7/5 based on 847 reviews.

$99.95 $29.95 Save $70.00

Experience Leak-Free Confidence
Experience Patented FluidCore™ Protection
Crafted with Care and Passion
Absorption: ~10.1 fl oz (12+ hours)

14-Day Return Period

Free Shipping

ANNIVERSARY SALE UPDATE: Due to high order volume, stock is very limited. If you can still press the 'Add to Cart' button, there's stock left!

Knox Comfort underwear is designed specifically for men dealing with different types of incontinence:

Stress Incontinence: Leaks from pressure on the bladder, like during exercise, sneezing, or lifting.
Urge Incontinence: Sudden, strong urges to urinate, often without warning.
Overflow Incontinence: Small leaks when the bladder is full.
Functional Incontinence: Difficulty reaching the bathroom in time due to mobility issues.

Ideal for senior men, but also for any adult man seeking comfort and protection.

In the groin area, Knox Comfort underwear for men features FluidCore Technology, designed to keep you dry, absorb moisture, and prevent leaks—so you can stay confident all day.

1. Fast-Absorbing Layer

Our quick-dry fabric, enhanced with FluidCore™ technology, rapidly soaks up moisture for all-day comfort. Infused with antibacterial silver particles, it eliminates 99% of bacteria.

2. Extra Absorbent Core

The advanced layered core locks in odors and absorbs up to 3× more liquid than standard pads, perfect for both light and heavy days.

3. Leak-Lock Membrane

The waterproof membrane prevents leaks while staying breathable. It remains effective even after 100 washes, helping maintain freshness throughout the day.

Even the best underwear won’t feel right if the fit isn’t just right. While we carefully design our sizing for accuracy, small variations can happen.

That’s why Knox Comfort comes with our 100% Perfect-Fit Guarantee.

Try your Knox Comfort underwear at home, and if the fit isn’t perfect within 14 days of receiving your order, simply email us with your order number and the size you need.

We’ll send you a new size completely free—no need to return the original. Comfort, confidence, guaranteed.

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Over 1,250+ reviews on GOOGLE from our clients

4.9 / 5.0

WALTER COOKWARE

I got the skillet set a few weeks ago, and I’m honestly impressed. It heats evenly, looks beautiful on my stove, and even my husband noticed how much faster dinner gets done. Great value for the price!

Jessica R.

A Lifestyle Upgrade

Knox Comfort is a lifestyle upgrade. Boxers are comfortable all day, and the Lounger Boxers feel like pajamas with style.

Samuel V.

Home Comfort Champion

Exceeded expectations. Soft material, great fit, and durable.

William G.

Never Going Back

I’ve never had boxers this comfortable. Knox Comfort has it right. Lounger Boxers are soft, roomy, and perfect for relaxing.

Jack R.

Soft and Durable

High-quality fabric, perfect fit, and very comfortable. I wear Knox Comfort Boxers daily and Lounger Boxers whenever I chill at home.

Ryan M.

Breathable

Soft, stretchy, and breathable. Boxers are great for active days, Lounger Boxers are perfect for lazy evenings. Very happy with my purchase.

Nathan L.

Highly Recommend

Comfortable, stylish, and hold up after multiple washes. Highly recommend for anyone looking for comfort.

David S.

Ever since, over 5,000+ lives have been completely transformed

STAY 100% LEAK-FREE ANYTIME, ANYWHERE

Knox Comfort FluidCore™ technology is what makes it the best in the industry

Don’t let urine leakage or mild incontinence take over your life. Knox Comfort Underwear offers the reliable solution you need. Stay confident and secure with protection engineered to keep you dry and comfortable. Enjoy total peace of mind, whether you’re out for a walk or going about your daily routine.

Prostate removal or treatment can lead to temporary — and sometimes permanent — urine leakage. In the weeks following surgery, bladder control can be unpredictable, and that’s completely normal. Knox Comfort Underwear gives you the confidence and protection you need throughout your recovery, all while staying discreet and unnoticeable.

Knox Comfort offers reliable support for men during exercise, work, or extended periods of activity. Its advanced absorbent design keeps you dry, comfortable, and confident from start to finish.

Unexpected leaks or drips at night can be frustrating and uncomfortable. With Knox Comfort Underwear, you can sleep peacefully without worrying about wet sheets or uncomfortable surprises. Discreet, comfortable, and specially designed to keep you dry throughout the night.

Knox Comfort provides soft, discreet protection for minor leaks or everyday moisture, keeping you dry, comfortable, and confident all day long.

Many men notice a few drops of urine leaking after they’ve finished urinating. It’s far more common than you might think, especially with age. Knox Comfort Underwear discreetly catches those last drops, preventing embarrassment or visible stains. No stress, no hassle.

Stay Dry, Stay Confident – 100% Leak-Proof

Say Goodbye to Leaks and Stains with Our Patented FluidCore™ Technology

Quick-Dry Technology for Comfort That Lasts

Enjoy All-Day Freshness and Softness – Built to Last and Reusable

Feel Fresh, Confident, and Odor-Free

Keeps You Fresh by Neutralizing Odor-Causing Bacteria

COMFORT THAT MOVES WITH YOU

Not Just Leak-Proof

Designed to fit the male form in all the right places, Knox Comfort offers secure support while maintaining a natural, comfortable shape.

Stay confident and feel your best with a fit that moves with you and provides reliable protection all day.

Any more questions? We have the answers.

We take care of the shipping costs—our way of saying thank you for choosing Knox Comfort.

Have questions? We’re here to help! Our experts are available 7 days a week to assist you.

Before reaching out, please check our Frequently Asked Questions—you might find your answer there.

Contact: support@knox-comfort.com.

Knox Comfort features a smart three-layer design: the first layer is 100% leak-proof, while the second layer absorbs moisture and locks it in to prevent leaks.

This advanced technology keeps you fully protected from unexpected urine leaks, drips, and sweat—so you can stay dry, comfortable, and confident all day long.

Ordered the wrong size? No worries! We’ll send you the right size completely free.

Just contact our customer service team, and we’ll make sure you get the perfect fit.

You can pay with Mastercard, Visa, American Express, Paypal, Maestro, Apple Pay, Google Pay & Shop Pay

We want your shopping experience to be seamless, which is why we make it easy to track your order.

Simply visit our ‘Track My Order’ page to see the status and progress of your purchase.

We know waiting can be stressful, so we keep you informed every step of the way.

Return period

We have a 14-day return period within which the customer may return their
package without giving any reason. These 14 days start when the package
is received.

Please note that the return must be sent back to us within these 14 days.

Return conditions

All items must be returned to us in an unworn and unwashed condition
suitable for resale with the tags still attached to the item.

Yes. We offer a 100% refund guarantee if you are not satisfied with your order.

Just contact our customer service and ask for your money back.

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