Your Gym Shorts Are Made of Plastic. Your Body Knows It.
Every synthetic workout short sheds microplastics directly against your skin. Absorbed through sweat, heat, and friction. The Quad Short is built entirely from organic cotton and merino wool. Zero synthetic materials.
Here's what the research says about your workout clothes.
of human testes tested contained microplastics
Toxicological Sciences, 2024above California's safe limit for BPA found in polyester athletic wear from major brands
Center for Environmental Health, 2023sperm count after 140 days of polyester contact (reversed after removal)
Contraception, 1992
We Built the Opposite
What Our Customers Are Saying
"Insanely hard to find athletic wear not made of polyester — these are TOP TIER"
These shorts are the best! It's insanely hard to find athletic wear that is not made of polyester and these are TOP TIER. The wool lining is so soft and amazing to workout in. Also, the pockets being on the side are a huge plus. 10/10
"No better feeling than natural fibers against your skin"
There is no better feeling than clean, organic, natural fibers against your skin. These shorts make me happy.
"Noticeable difference in my energy levels"
Got my first full lift in today since buying these shorts and felt a noticeable difference in my energy levels. There is something about wearing natural fibers that amplifies your energy and these shorts give that feeling. The merino wool lining is insanely soft and gives a comfortable fit. The zipper pockets are nice because you don't have to worry about stuff falling out of your pockets.
Why Natural Fiber Activewear
Zero Synthetic Materials
The only activewear short with zero plastic. From shell to liner.
Organic Cotton Shell
Made with GOTS-certified organic cotton. No pesticide residues, no synthetic dyes.
Naturally Antimicrobial
Merino wool liner resists odor naturally. No chemical treatments needed.
Third-Party Certified
GOTS and OEKO-TEX 100 verified through the full production chain.
Breathes and Regulates
Natural fibers regulate temperature. No overheating, no clammy synthetic feel.
Quad Short vs. Polyester Performance Shorts
Ready to make the switch?
Quad Short: Natural Fiber Short
More From Our Customers
"Best athletic shorts ever"
Best athletic shorts I have ever purchased. The quality of these shorts is top-notch. I purchased the Wine color and it's a beautiful shade. The zippered pockets are a fantastic feature — no more worrying about your phone or keys falling out during a workout. I would recommend sizing up one size for a more relaxed fit.
"Really impressed compared to synthetic shorts"
Really impressed with the quality of these shorts compared to synthetic alternatives. The organic cotton feels premium and durable — I've put them through multiple washes and workouts and they hold up great. Finally an activewear brand that's not just selling rebranded plastic.
"Phasing out all my other shorts for these"
Came back for my second pair. I'm phasing out all my other shorts for these. The durability has been excellent — first pair still looks and feels brand new after months of regular use.
"All natural fibre training short — super comfortable"
Finally found an all natural fibre training short. Super comfortable for lifting and conditioning work. The merino liner wicks moisture really well — no clamminess even during intense sessions.
Every pair of shorts in my drawer was polyester. Shedding microplastics, trapping bacteria, requiring chemical treatments. I wanted activewear I could trust against my skin. So I built the Quad Short: organic cotton shell, merino wool liner, zero synthetic materials.
No plastic. No compromise. That's it.
Frequently Asked Questions
Every Workout Is a Choice. Now You Have a Better One.
Activewear made entirely from natural fibers. Made with GOTS-certified organic cotton and merino wool. Zero synthetic materials.