7 REASONS WHY MEN ARE DITCHING POLYESTER BOXERS FOR ORGANIC COTTON
Todd H. | August 16TH, 2026
MARO BOXERS VS. OTHER Underwear
- Fabric
- Waistband
- Microplastics
- Temperature
- Freshness
- Fabric100% Organic Cotton
- WaistbandNatural Tree Rubber
- MicroplasticsZero
- TemperatureBreathes All Day
- FreshnessLike New After Each Wash
- FabricPolyester (Plastic)
- WaistbandPolyester & Spandex
- Microplastics100% Plastic
- TemperatureTraps Heat And Sweat
- FreshnessSmell Never Washes Out
THE LABEL SAYS "PERFORMANCE." THE CHEMISTRY SAYS PETROLEUM.
Most boxers, including ones from premium brands, are 88 to 92 percent polyester. Polyester is plastic. It's made from petroleum, one of the cheapest raw materials on the planet, sold under performance-sounding names. Check the label on yours.
COTTON BREATHES. PLASTIC JUST HOLDS EVERYTHING IN.
Polyester sits against your skin and holds heat and moisture against it. The fiber does nothing to help your body regulate temperature. Organic cotton breathes the way your skin needs it to: air moves, moisture escapes, and your body does what it's supposed to do.
POLYESTER HOLDS ODOR AT THE FIBER LEVEL. WASHING DOESN'T FIX IT.
Bacteria get stuck in synthetic fibers in a way washing can't fully clear. It's why most underwear smells within an hour of wearing them and doesn't wash out. Cotton doesn't hold odor the same way. MARO boxers stay fresh between wears.
YOUR PORES OPEN WHEN YOU SWEAT. PLASTIC FIBERS TAKE THE OPENING.
When you exercise, your pores open. Microplastic fibers shed from polyester give harmful chemicals a direct path. Every day in synthetic fabric is an argument for what you're wearing against your skin.
Evidence: University of Birmingham Study
MOST "COTTON" BOXERS STILL HAVE A PLASTIC WAISTBAND.
Brands use a phrase: "exclusive of trim." It lets them call their underwear "100% cotton" while the waistband, the part sitting against your skin all day, is still spandex and polyester. MARO's waistband is 60% organic cotton and 40% natural rubber. Nothing synthetic. Anywhere.
IT'S CHEAP TO MAKE. EXPENSIVE TO BUY. YOU'RE PAYING THE DIFFERENCE.
Polyester costs a fraction of what organic cotton costs to produce. The margin gets spent on marketing. The premium price on most underwear is about the logo, not the material. And "recycled" polyester is still polyester. Same plastic, greener label. MARO puts the money into what's actually touching your skin.
TRY THEM. IF THE FIT ISN'T RIGHT, WE MAKE IT EASY.
97% of our customers keep what they ordered. But if the fit isn't what you expected, returns and exchanges are easy. Nothing to lose in finding out what plastic-free actually feels like.
UP TO 20% OFF WHEN YOU BUNDLE
Available in two styles, three colors, and five sizes.
SAVE UP TO 20% →
THREE WORDS THE INDUSTRY HOPES YOU NEVER READ
I was shocked when I first heard the term "exclusive of trim." It's a tricky phrase used by the clothing industry so they can say a product is 100% cotton, even when it contains spandex or elastane.
I realized this was true of almost all the underwear on the market. Despite being labeled 100% Cotton, the waistband, considered "trim," was still made of plastic.
There's nothing illegal about labeling underwear like this. But it's not right. I knew there had to be a better way.
It turns out there is. Natural rubber comes from trees, not petroleum. Combined with organic cotton, it makes a 100% natural, safe, and biodegradable waistband. We've sold thousands of pairs in the last year and can barely keep them in stock.
FALLING SPERM COUNTS. PLASTIC WHERE IT SHOULD NEVER BE. THIS IS REAL.
This is not a scare campaign. It's peer-reviewed science. Here's what researchers keep finding.
Researchers tested 23 human testicles for microplastics. They found them in all 23. Not most. All.
(Hu et al., 2024)Microplastics have been found in human semen too. Including PET, the exact plastic polyester is made of.
(Montano et al., 2023)A multi-site study found microplastics in every semen sample tested. The more polymer types a man carried, the lower his sperm count.
(eBioMedicine, 2024)Men wore polyester against the testes for 12 months. Sperm counts crashed toward zero. They recovered once the polyester came off.
(Shafik, 1992)Polyester is PET. The same plastic as a water bottle. Most underwear is made of it, and it sits on the most sensitive skin you have for 16 hours a day.
UP TO 20% OFF WHEN YOU BUNDLE
Available in two styles, three colors, and five sizes.
SAVE UP TO 20% →CUSTOMER REVIEWS
This underwear is amazing. I've had my four pairs for about a month now and have worn them in many different ways - to the gym, to work, going out, even just lounging around. They've been great every single time. They also stay as is after washing/drying. I've been wearing organic cotton underwear from a few different companies for about two years now, and I can say that these are easily the best. Not to mention the only ones that are truly plastic free. I'll certainly be purchasing more. Well done!
Amazing boxers! These are not full on compression shorts like some boxer briefs. But they are also not some loose boxer shorts. This hybrid fit is the perfect every day wear feel.
Best boxers I have ever owned and they are 100% Organic Cotton non toxic and ABSOLUTELY NO PLASTIC! I will be getting more of my new favorite boxers super comfy too!
The fit is exactly like it should be. Keeps everything together, but enough room to let the important bits breath. If your glutes and thighs are monster mode because you don't skip leg day, you may want to go a size up. I'll go Large next time. I'm glad I found a brand that I can finally trust.
These are pretty nice boxers... better than anything from a department store. They're comfortable, secure, and well-constructed from what I can tell.
Husband is happy with these boxers. He said they've very comfy and high quality. We will purchase more!
DUE TO HIGH DEMAND AND THE FACT THAT LESS THAN 3% OF THE WORLD'S COTTON IS ORGANIC, THERE IS A VERY HIGH RISK OF SELLING OUT
SAVE UP TO 20% →
FAQS
Most brands get there through a loophole called "exclusive of trim." The main fabric is cotton, but the waistband is still spandex and polyester. MARO's waistband is 60% organic cotton and 40% natural rubber. Nothing synthetic. Anywhere.
Cotton is a durable natural fiber. With normal use and proper washing it holds its shape well. The advantage over polyester is that cotton doesn't permanently trap odor, so the boxers stay fresh longer without needing a wash after every wear.
Yes. Cotton breathes better than polyester during activity, so you sweat less, not more.
The Boxer Briefs have a supportive fit that stays in place without being restrictive. The Relaxed Boxers have a looser cut with a natural corozo button front and side slits for easy movement. The model on the site is 6'1" with a 32-inch waist in a Medium.
No. The boxers are pre-shrunk without chemicals. Wash cold and dry low heat and they'll hold their shape wash after wash.
S, M, L, XL, and XXL. Both styles come in all five sizes.
Machine wash cold, dry low heat.
Returns and exchanges are easy. Reach out and we'll sort it.
