Boxer Briefs Green – Performance Modal
Boxer Briefs Green – Performance Modal
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Ultra-Absorbent & Drier Than Cotton
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No Ride-Up, No Chafing, & Breathable
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Optimal Airflow & Odor-Resistant
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Supports Natural Testosterone Balance
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Size & Fit
Size & Fit
- Measure your waist where you wear the waistband (snug, not tight).
- Between sizes? Size up for comfort—especially for overnight use.
- Still unsure? Scroll Down or Tap Size Guide next to the size selector (waist is the key metric).
Wrong Size? Easy Exchange
Wrong Size? Easy Exchange
- Ordered the wrong size? We’ll help you swap to the right fit.
- Fast, simple exchange process—no hassle.
Materials & Sensitive Skin
Materials & Sensitive Skin
- Made with high-quality natural Micro Lenzing Modal using OEKO-TEX® STANDARD 100 certified materials (tested for harmful substances).
- Soft, breathable feel for everyday comfort.
- For best comfort: wash before first wear and use a gentle detergent.
Wash & Care
Wash & Care
- Rinse in cold water first (recommended).
- Machine wash cold or warm with mild detergent.
- Avoid fabric softener & bleach to protect absorbency and performance.
- Air-dry or tumble dry low.
Size Guide Briefs
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TENCEL™ & OEKO-TEX® Certified
We only use fabric that meets the highest global standards. Our modal is certified by TENCEL™ for sustainability and OEKO-TEX® Standard 100 for skin safety — meaning it's free from harmful chemicals, and better for both your body and the planet.
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Premium Materials and Craftsmanship
We use 95% Micro Lenzing™ Modal the same fabric trusted by high-end luxury brands cut and sewn with precision. It's naturally soft, breathable, and made to hold up through daily wear, long flights, and repeated washing. No shortcuts. No compromises.
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Strong Reinforced, No-Roll Waistband
Our custom-engineered waistband is designed to stay flat and stay put. It won’t fold, roll, or sag even after months of use. Tonal stitching, soft interior, and zero external branding. It’s what comfort looks like when you strip everything unnecessary away.
Unbelievably Soft
Modal has a finer, smoother fiber than cotton or bamboo, which gives it that naturally soft, almost weightless feel against the skin. It doesn’t cling, doesn’t itch, and doesn’t wear rough over time. The softness holds even after repeated washing without ever feeling thin or fragile.
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Softer than cotton, bamboo, or synthetics
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Finer fibers = naturally smoother surface
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Doesn’t irritate or cling to skin
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Stays soft, wash after wash
Modal has a finer, smoother fiber than cotton or bamboo, which gives it that naturally soft, almost weightless feel against the skin. It doesn’t cling, doesn’t itch, and doesn’t wear rough over time. The softness holds even after repeated washing without ever feeling thin or fragile.
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Softer than cotton, bamboo, or synthetics
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Finer fibers = naturally smoother surface
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Doesn’t irritate or cling to skin
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Stays soft, wash after wash
Lightweight Strength
Stark's Micro Lenzing™ Modal balances a feather-light feel with unexpected structure. It moves naturally with your body, holds its form, and delivers long-term comfort without ever feeling bulky or fragile.
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No ride-up, sagging, or overstretching
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Breathable and feather-light on skin
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Holds shape without added bulk
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Moves naturally with your body
Stark's Micro Lenzing™ Modal balances a feather-light feel with unexpected structure. It moves naturally with your body, holds its form, and delivers long-term comfort without ever feeling bulky or fragile.
-
No ride-up, sagging, or overstretching
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Breathable and feather-light on skin
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Holds shape without added bulk
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Moves naturally with your body
Consistency You Feel
Modal doesn’t stretch out, sag, or wear down like cotton or synthetics. It holds its structure keeping the same clean fit and smooth feel, no matter how many times you wear and wash it. It’s the kind of consistency most fabrics can’t deliver.
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No sagging seams or loose legs over time
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Resistant to pilling, shrinkage, and fade
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Legs, seams, and waistband stay where they’re meant to
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Maintains a body tailored fit
Modal doesn’t stretch out, sag, or wear down like cotton or synthetics. It holds its structure keeping the same clean fit and smooth feel, no matter how many times you wear and wash it. It’s the kind of consistency most fabrics can’t deliver.
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No sagging seams or loose legs over time
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Resistant to pilling, shrinkage, and fade
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Legs, seams, and waistband stay where they’re meant to
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Maintains a body tailored fit
These are hands down the greatest undies known to man. I can't believe it took me 30 years to find comfortable underwear that isn't made of polyester.
I can’t explain how good they feel, and how there is so much room. Just wowza.
My old cotton CKs are going straight in the bin.
If you’re in between two sizes, maybe go for the larger.
These are by far the best boxers, far better than the more expensive brands I have. These are the only ones that don't creep up, and the fit is super comfy with high quality materials.
I discovered STARK on social media, and I never thought I’d be writing a review about underwear 😅 but honestly, this brand is on another level.
+3 months and no stretching, no discomfort, even after multiple washes. Just pure comfort.
I 100% recommend it!!!
Thank you.
Tony
I love those briefs, super comfortable and the waistband is strong but soft, I've been wearing them for a month definitely the best boxers I've bought ever, price is fine I bought a 3pack but will buy 5packs next month then the price is awesome.
I read so many good reviews but the thigh length was nothing like the pictures and considerably shorter than anything I’ve seen online. Not sure if they changed manufacturers but this 5 pack was not worth it and shouldve just bought 1 to try first.
Hi Ryan Lowder, the other 5-star reviewers might have been able to use the size guide in the description or the size guide we added to the images, just in case a customer is not able to find the guide in the description. Well... here we are. A well-deserved 1-star review. We are very sorry and take full responsibility.
FYI: Please consider, for future reviews of other companies, that 1-star reviews can seriously hurt a business. Thank you, Ryan.
Had some issues with sizing, which took over a couple of weeks to even get a reply about an exchange or refund. Overall, I am happy with the product and the resolution, but it wasn't as hassle-free / risk-free as guaranteed, and you are liable for the shipping costs to return it.
Love the product, love the price!
I love these. I got sad about my StepONE boxerbriefs falling apart on me after less than a year. These feel *so much nicer* overall. There's more room for my body parts up front. They're softer. They look better. And whilst you're supposed to hang them out to line dry, I've been using the laundry dryer on low heat and delicates cycle and they're totally fine. I have been converted!! I trusted all the reviews and my first order was for ten pairs. I will order another ten soon.
Very comfortable
I absolutely loved the fast shipping, the thoughtful packaging and the product itself. Very comfortable! I love wearing them; no chaffing or riding. No sweating, very breathable. I bought 8 and I wish there was a discount or sale price but its worth it.
I work in the mines and i wear these every day and cant fault them.
They’re very comfortable, but I probably should have bought a size smaller. No complaints however.
Very soft and comfortable briefs. I am 87cm waist and Large is more than adequate. My initial order was for XL which were far too big. Stark sent three replacement briefs at no charge. A company which provided excellent customer service.
Customer service was outstanding. I originally ordered the wrong size and the team sent out a new pack super quickly, and even included an extra 5 pack free of charge, which was an extremely generous and much appreciated!!
The boxer briefs themselves are amazing quality. The fabric is super soft and breathable. Highly recommend both the product and the company.
Love everything about them and no surprises when i got them, i should have gone with my gut instinct on sizes instead of the chart and got large instead of extra large when im a 34 inch waist.
874this is the second lot i have brought loving them very comfortable
Great fit, great feel right out of the bag. Can't wait to see how they hold up over the months.
Have ordered more ..enough said
Super comfortable. Love the material Have ordered more.
Nice fabric, good fit. Very stylish.
awesome feels great loving them
Excellent product and sensational assistance from Customer Support team.
Very comfortable
Used them during sports — very impressed.
Used them in humid weather and stayed dry.
They don’t sag or lose their form.
Good for guys who run hot.
The quality is honestly surprising.
Wore them lounging around all day — no complaints.