HercUnderwear 2.0 - Boxer Briefs
The underwear built to stay fresh for days, not hours.
- Fresh for days
- Silky soft
- Cool and dry
- Stretchy fit
“I wore this underwear backpacking for 5 days straight in humid Kentucky and had no issues with smells! I only tested it for 5 days in a row, but I expect it could have done more!”
“I wore them for 2 days straight and even used them throughout my gym sessions and they didn't stink one bit.”
“They are very comfortable and stay fresh feeling for significantly longer than any other underwear I've tried.”
“I travel a lot and wanted to put them to the test to see if they truly were odor-free as advertised. I can confirm that they are.”
“Fantastic fit, super comfortable... and saves me on laundry. Win, win, win!”
“Not only they performed just as advertised, but they were comfortable, soft, and felt fresh every day!”
“I have taken them on my long trips and you honestly can do a quick rinse and air dry in the sink when you can’t get to a washing machine.”
- Free US shipping over $50
- Ships in 1 to 3 business days
- 30-day returns
Can I really wear one pair for days?+
Yes. HercUnderwear handles sweat and odor. Use Buttler or a quick rinse with water after the bathroom, and it keeps going.
Will it ride up?+
It fits snug. If you're between sizes or like more room, size up. Tap the size guide next to the sizes to find yours.
How do I care for it?+
- Wash cold, turned inside out, on a gentle cycle.
- Use a mild detergent. No bleach, and never fabric softener.
- Air dry if you can. Otherwise, tumble on low heat.
- Rinse between wears if needed. A quick rinse with water takes care of the little marks any underwear picks up.
What if it doesn't fit?+
You have 30 days after delivery to request a return or exchange. For hygiene reasons, we accept one opened pair per order, plus any unopened pairs. Every pair also comes with our lifetime manufacturer warranty.
HercUnderwear 2.0 - Boxer Briefs
Have you ever worn technology?
Built with antibacterial copper, odor-trapping bamboo charcoal, and more advanced fibers woven into every pair, HercUnderwear is designed to stop odor before it starts. Not regular underwear with a label slapped on. Real technology, in the most personal layer you own.
“Two weeks motorcycling in Morocco, and no odors even after three or four days.”
“Most comfortable underwear I have ever worn.”
“The James Bond of underwear. It beat everything from Gucci to Calvin Klein.”
A different category in performance underwear.
Anti-Bacterial
HercUnderwear is antibacterial, fighting the bacteria behind odor and buildup, so it stays cleaner for longer between washes.
Anti-Odor
Built to stop smell before it starts, HercUnderwear stays fresh through long days and even longer trips.
Soft and comfortable
Smooth and light against the skin, with the kind of comfort you tend to forget you have on.
Incredibly Breathable
Air flows where you need it most, so you stay cool and dry no matter how the day heats up.
Days on end.
One pair.
One pair. That is all you need. Pack one and your whole trip fits in a carry on, with room to spare. No sniff test, no overpacking, no laundry pile waiting at home.
HercUnderwear keeps itself fresh for days. For the little marks any underwear picks up, a quick rinse with water does the job, or let Buttler, our travel bidet, do some of the work for you.
Made for movement.
Clean where it counts.
Your underwear works hardest in the warmest, sweatiest part of your day. HercUnderwear is antibacterial, so it fights the bacteria that cause odor and irritation right at the source. It stays fresh, clean, and smooth against your skin from morning to night.
Built to outlast the rest of your drawer.
Most underwear does not wear out from wearing. It wears out in the wash. HercUnderwear is built tougher and washed far less, so it outlasts a whole drawer of ordinary pairs. Buy once, replace rarely.
✓Lasting performance.
Most performance gear is sprayed on, so it fades with every wash. HercUnderwear is built in, designed to keep performing like new for years.
How?
Five materials. One underwear.
HercCopper
Copper woven into the fabric is antibacterial, going after the bacteria that turn sweat into smell and shutting odor down at the source before it ever builds.
Micro Modal
Spun from wood pulp into an ultra fine fiber, it gives HercUnderwear that soft, smooth, barely there feel against your skin.
Bamboo Charcoal
Acts like a microscopic sponge, pulling moisture off your skin and trapping odor so nothing lingers through the day.
HercLyocell
Spun from natural wood pulp, HercLyocell takes the odor fight further. Rather than masking a smell, it grabs the ammonia and other odor molecules your body gives off and neutralizes them on contact.
Spandex
Adds the stretch and recovery that hold a clean, supportive fit, so HercUnderwear moves with you and stays put. No riding up.
Everything else you want in your underwear.
Nothing else checks every box.
Care, made simple.
Less washing, less fuss. A little goes a long way.
Wash cold
Turn it inside out and use a cold, gentle cycle.
Skip the softener
No fabric softener, so it keeps doing its job.
Hang or tumble low
Air dry, or tumble on low heat. Never hot.
Wash far less
Air it out overnight between wears and wash only when you truly need to.
Try one, risk-free.
Day return window
Lifetime manufacturer warranty
Nobody was obsessing over the thing you wear every day. So we did.
You spend almost every waking hour in contact with fabric, and the most personal layer of all is the one nobody bothered to push forward. So we teamed up with some of the most advanced textile labs on earth for a single fight, the one against odor, and built HercUnderwear to outperform just about anything in your drawer right now.
The honest downsides.
We read every review, the glowing ones and the critical ones. Here is what a few customers wish they had known first, in their own words, so you can decide with eyes wide open.
The waistband can fold over
This is the one we hear most. On some bodies the waistband rolls or folds over itself, especially early on. We reworked the band on newer pairs and many people found it settled, but it is worth knowing going in.
The fit runs snug
These sit closer than a typical pair, and a few customers found the legs ride up or the size ran tight. If you are between sizes or want a roomier feel, size up. It is the more forgiving direction to guess in.
Support is on the lighter side
If you are used to a structured pouch, these lean minimal. A handful of customers wanted more support under tight jeans or for higher activity, so a lot depends on what you are coming from.
Freshness varies from body to body
Plenty of people go many days between washes, while a few find they want a wash sooner. Body chemistry plays a part, so it helps to treat the long wear as a range rather than a fixed number.
Skip the fabric softener
Fabric softener coats the fibers and tends to leave marks on the fabric, so it is best left out. A simple wash with a gentle detergent keeps HercUnderwear performing and stain free.
FAQ
Answers to what people ask us most.
HercUnderwear fights odor and bacteria at the source rather than masking it, with that protection woven into the fabric itself instead of sprayed on. That is why the freshness holds up for the life of the product.
If you want it to last years, wash it in cold water, without fabric softeners or any of that marketing BS. Dry on low or medium heat, or hang dry. That's basically it. No special treatment needed.
Longer than you would think. Our underwear stays fresh through days of wear and travel, well past the point where ordinary underwear starts to turn. Wear it, test it, and let it surprise you.
Cotton is comfy, but it soaks up sweat, holds onto smell, and wears out fast. HercUnderwear stays fresher for longer, breathes better, and holds its shape for years. Once you try it, going back feels like a downgrade.
That is the goal. Durability is a core value of ours. We personally hate when things don't last, so we design our products to be useful for years. We want to be like Toyota trucks. Products so good they are hard to wear out.
Most underwear gives up by lunch.
Here's where ordinary underwear lets you down, and what HercUnderwear does instead.
It smells by the end of the day.
Heat and sweat build up where air can't reach, and ordinary pairs hold on to the smell.
Fresh for days.
HercUnderwear goes after the bacteria behind odor right at the source, so it stays fresh through long days and longer trips.
It traps heat and moisture.
Cotton soaks up sweat and stays damp against your skin for hours.
Cool and dry.
It pulls moisture away and breathes, so you stay comfortable when the day heats up.
It fills your bag.
One pair per day adds up fast, and the suitcase gets heavier with every trip.
Pack light.
A couple of pairs can cover a whole trip in a carry on.
It wears out fast.
Constant washing stretches the waistband and thins the fabric.
Built to last for years.
Fewer washes and a tougher build, backed by a lifetime manufacturer warranty.
How?
Five things make the difference.
Tap any card to go deeper.
HercCopper
Our specialized copper fiber, woven right in. It goes after the bacteria that turn sweat into smell, right at the source.
HercCopper
People have used copper to keep things clean for thousands of years. HercCopper puts that to work inside the yarn itself, so the protection is part of the fabric instead of a coating that washes out, wash after wash.
CloseMicro Modal
The soft, smooth base that gives HercUnderwear its barely there feel against your skin.
Micro Modal
Micro Modal is spun from wood pulp into an ultra fine fiber, so it glides over your skin instead of catching on it. It breathes, pulls moisture away, and stays soft wash after wash.
CloseBamboo Charcoal
Works like a microscopic sponge, pulling moisture off your skin and trapping odor.
Bamboo Charcoal
Bamboo charcoal is naturally porous, so it soaks up moisture and holds on to odor instead of letting it linger. It helps keep things dry and fresh through the warmest part of your day.
CloseHercLyocell
Grabs the ammonia and other odor molecules your body gives off and neutralizes them.
HercLyocell
Spun from natural wood pulp, HercLyocell takes the odor fight further. Rather than masking a smell, it captures odor molecules and neutralizes them on contact, while staying cool and smooth against your skin.
CloseSpandex
Stretch and recovery for a clean, supportive fit that moves with you and stays put.
Spandex
Spandex is blended in so the fabric stretches when you move and springs right back. It keeps the fit in place all day, with no riding up.
CloseBuild your rotation.
Mix and match any colors and styles. The more you add, the more you save, applied automatically at checkout.
Enough to rotate through the week.
A full week of travel in one small bag.
Your whole drawer, upgraded for good.
Savings count across your whole cart, so other HercLéon pieces add up too.
As seen on
Trusted by 10,000+ customers in 100+ countries
Don't take our word for it.
“The 3rd day, I decided to test the underwear, and wore the same pair as the 2nd day. They felt just as good as they did the day before!”
“...it hit me; "Dang! These feel as clean and fresh as when I put them on yesterday!!!!"”
“Despite long rides (8-12 hours), I didn't notice any odors even after three or four days.”
“I wore this underwear backpacking for 5 days straight in humid Kentucky and had no issues with smells! I only tested it for 5 days in a row, but I expect it could have done more!”
“I've done 10km races in these and they've still been fresh as a breeze afterwards. My boxers drawer is being slowly taken over by these, and is half the size it used to be!”
“I have been wearing a pair at least five days a week, washing them every use, every week, which means they have been through approximately 170 washer and dryer cycles... there are absolutely no signs of wear.”
“These are great for traveling and going camping. With these, I can reduce my packing by a quarter, and still feel and smell good.”
“Comfortable - check. Good drying time - check. Not smelly after two days of hiking - check.”
Your next trip,in one pair of HercUnderwear.
One pair on.
Morning gym session.
Then a 9 hour flight.
Still fresh at baggage claim.
The bathroom stop.
A few seconds with Buttler.
No toilet paper leftovers.
That's what keeps one pair going.
Same pair.
20,000 steps around a new city.
No sniff test.
No backup pair.
Still the same pair.
Your travel buddy is on pair number three.
You're on pair number one.
Nobody can tell.
Home.
One small laundry load.
Not a mountain.
Your Sunday stays yours.
Did you know?
The average amount of poop in a pair of worn underwear. About a quarter of a peanut.
Toilet paper mostly moves it around. Water actually rinses it off. That's why we made Buttler, a travel bidet you can take anywhere. Pair it with HercUnderwear, which fights odor and bacteria, and one pair really can last the whole trip.
Shop ButtlerSource: Dr. Charles Gerba, microbiologist, University of Arizona