10 Reasons To Ditch Polyester (And What to Wear Instead)
See why the health crowd is replacing synthetic gym shorts with natural fibers.
Shop the Quad Short
Quad Short vs. Polyester Shorts
Polyester Is Plastic
Polyester is a synthetic fiber made from petroleum-derived materials. And virtually every activewear brand uses it.
If you avoid plastic everywhere else, your gym shorts are worth checking too.
Even the ‘Sustainable’ Stuff Is Plastic
Brands often use recycled polyester and claim sustainability.
But recycled polyester is still plastic. They take plastic bottles and turn them into clothes.
Recycled or not, they still shed microplastics and undergo heavy chemical treatments that can negatively impact our health and planet.
It Irritates Skin
Polyester gym shorts are notorious for causing skin issues like rashes, red spots, and itchiness after a workout.
It’s because it traps moisture and is a breeding ground for bacteria.
Polyester Holds Odor
That “gym clothes smell” is not in your head.
Synthetic fabrics often hold odor after workouts, even after washing due to their chemical makeup.
Synthetic Activewear Has Raised Chemical Concerns
Testing and public reporting have raised concerns around chemicals like BPA, bisphenols, and PFAS in certain synthetic textiles and activewear.
Brands like Lululemon are even being publicly sued due to health concerns around toxins in their clothes.
Polyester Sheds Microplastics
Synthetic fabrics like polyester can shed tiny plastic fibers during wear and washing.
That is one reason more health-conscious men are rethinking plastic-based activewear.
If you are trying to reduce plastic in your life, your gym shorts are an obvious place to start.
‘Moisture-Wicking’ Often Means More Fabric Treatments
Polyester is often marketed as sweat-wicking and technical.
But many synthetic fabrics rely on finishes, coatings, or treatments to create those performance claims.
These chemicals include formaldehyde, PFAs, phthalates, and more. And it sits directly against our skin which absorbs it all.
It’s Cheap and Marked Up
Big activewear is using these materials because they’re cheap and super easy to come by.
It costs them pennies on the dollar, but they mark it up for consumers and call it premium.
Natural Performance Fibers Exist
You do not need to choose between natural materials and performance.
Merino wool naturally regulates temperature, manages moisture, and resists odor.
That is why Wayve uses merino where you sweat and organic cotton for the outer shell.
There’s Finally a Better Option
The Quad Short is built for men who want to stop training in plastic.
Organic cotton outside. Merino wool where you sweat. Zero polyester, nylon, spandex, or elastane.
That is what to wear instead.
What To Wear Instead


Reviews
There is no better feeling than clean, organic, natural fibers against your skin. Theses shorts make me happy.
Super comfy. The pocket design is also great for training.
Absolutely love these shorts! Fit and style are great. Will be purchasing more and highly recommend! Worth the price!
No Other Athletic Short Can Compete As someone who’s as active as can be, the Quad short has literally changed my life! It’s durable, yet breathable. I use mine daily for bike rides, runs, and a variety of sports. I’ve gotten easily 200+ uses out of mine and they’re still holding up. No chafing and they keep my jewels well hidden with the merino wool liner that offers a natural compression feel without the polyester and spandex, protecting my jewels in more ways than one. Most underrated part is the zipper pockets too 🔥 literally never have to worry about my phone or keys falling out no matter the activity.
Frequently Asked Questions
Are these actually good for workouts?
Yes. The Quad Short is built for lifting, running, hiking, walking, travel, and everyday wear.
Will the merino liner itch?
No. The liner uses ultrafine merino wool jersey designed for next-to-skin comfort.
How do they stretch without spandex?
The stretch comes from merino’s natural give and an athletic cut designed for movement.
Why not just wear cotton shorts?
Basic cotton shorts usually are not built for training. The Quad Short combines an organic cotton shell with a merino wool liner, side zipper pockets, internal drawstring, and an athletic fit.
What size should I get?
The fit is athletic. If you are between sizes or carry more size in your legs, size up.
What is the best first order?
The 3-pack. You save over 20%, get free shipping, and build a real rotation instead of buying one pair and going back to synthetics.