Your Boxers Are Plastic. Even the "Cotton" Ones.
You train, you eat clean, then spend 16 hours a day in plastic. Even the "cotton" pairs hide it in the waistband.
- Zero plastic, anywhere
- Certified organic cotton
- Natural tree rubber waistband
- Easy returns and exchanges
The Truth About 99.9% of Underwear
99.9% of boxers are polyester (aka plastic) or cheap cotton blends soaked in chemicals. Here's why that matters:
Polyester Is Plastic.
The fabric in most boxers is petroleum, spun into thread. It can contain:
- Microplastics, shed straight onto your skin
- BPA
- PFAS and phthalates
- Formaldehyde
- Forever chemicals
And It's Showing Up Where It Shouldn't
Scientists have found microplastics in human testicles and semen. The more plastic a man carries, the lower his sperm count. One study put men in polyester for a year: sperm counts crashed, then recovered once it came off. The chemicals in plastic fabric have been linked to:
- Decreased testosterone
- Erectile dysfunction
- Infertility
- Cancers
- And more
It's the Most Absorbent Skin on Your Body
What sits against it for 16 hours a day goes in. Polyester holds heat, sweat and chemicals right there. Cotton lets it breathe.
Switch to zero plastic
Regular Cotton Isn't the Fix Either
Cotton is one of the most sprayed crops on the planet. The cheap pack at the store comes with:
- Pesticides
- Chemical fertilizers
- Chlorine bleach
- Toxic dyes
- Formaldehyde finishes
Even the "Organic" Brands Put Plastic on You
Three words the industry hopes you never read: "exclusive of trim."
- "100% cotton" on the label, polyester and spandex in the waistband
- The one part pressed against your skin all day
- MARO's waistband is organic cotton and natural tree rubber. Zero plastic, anywhere.
MARO vs. the Other 99.9%
Pick what's in your drawer.
 The upgrade | BasicsThe default | "Performance"The impostor | "Organic"The illusion |
|---|---|---|---|
| Heat & Odor | |||
| Cotton breathes. Heat moves out, not in. | Polyester traps heat all day. | Wicks sweat, still locks in heat. | Soft, but the synthetic band still traps heat. |
| Nothing for bacteria to live in. Fresh all day. | Humid by 10am, odor by noon. | Stink baked into the plastic fibers. | Fresh until the waistband isn't. |
| Plastic & Skin | |||
| Zero plastic. Fabric, thread, waistband. | Polyester on your most absorbent skin. | Nearly 100% plastic, worn 16 hours a day. | "100% cotton," exclusive of trim. |
| Natural tree rubber waistband. The only one. | Microplastics shed right where it counts. | Built for a 45-minute workout, not all day. | A synthetic waistband on your skin all day. |
| Chemicals & Health | |||
| Certified organic cotton. Nothing sprayed. | Conventional cotton: pesticides, bleach, formaldehyde. | Endocrine disruptors documented in polyester. | Organic fabric, undisclosed waistband. |
| Low-impact certified dyes. | Uncontrolled dyes, zero disclosure. | Heat on reproductive tissue, all day. | No testing at the contact layer. |
| Fit & Durability | |||
| Pre-shrunk. Holds its shape wash after wash. | Waistband dead in 90 days. | Smooth fabric slides and creeps. | Loose drape. Cozy isn't chafe-proof. |
| 97% of customers keep what they order. | Rides up and bunches. | Elastic cooks in daily heat. | Soft feel fades fast. |
What guys are saying
These are easily the best. Not to mention the only ones that are truly plastic free. I'll certainly be purchasing more.
I love that they are actually 100% plastic free. They fit very well.
The fit is exactly like it should be. Keeps everything together, but enough room to let the important bits breathe. A brand I can finally trust.
The comfort and quality are unmatched and more importantly the peace of mind of knowing there are no microplastics is outstanding.
Best boxers I have ever owned and they are 100% organic cotton, non toxic and absolutely no plastic! Super comfy too!
These fit and stretch the best out of the organic cotton boxers I've tried. Washed them 3 times and they've held up.
I love these boxer briefs. They are extremely comfortable and they don't leave waistband marks.
Super comfortable. I have a physical labor job and they do great under duress and sweat.
Exceptional quality and incredibly comfortable. The best boxers I've ever worn. I'd highly recommend them.
Perfect fit and great feel. I thought they were silk when I first opened the package.
I like the new bigger waistband, it feels a lot softer than before. These are my new forever boxer briefs.
Pick Your Fit
Both 100% organic cotton with a natural tree rubber waistband. Sizes S to XXL.
Three Mistakes Most Guys Make Buying Cotton Boxers
Grabbing the generic pack at the store
Sprayed cotton, bleach, cheap dyes. Still says "100% cotton." MARO is certified organic with low-impact dyes.
Never reading the waistband
Even "organic" brands hide a polyester band behind "exclusive of trim." MARO's is natural tree rubber.
Paying crazy prices
Making boxers the right way does cost more. But you shouldn't be paying an arm and a leg for a few pairs of underwear. Bundle and save up to 20% on our 100% plastic-free boxers.