Black text spelling 'RYKER' on a white background.

Ditch your toxic polyester gym shorts

The same styles you love, WITHOUT the toxic polyester.

Shop polyester-free activewear

100% Natural Fabrics

No Endocrine Disruptors

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Non-Toxic Fabric

Non

Toxic

Fabric

100% Polyester-Free

100%

Polyester

Free

Polyester-Free Activewear

The Apex Short (100% Organic Cotton + 100% Merino Wool Liner) - Navy - 5.5"

$79
$0

The Apex Short (100% Organic Cotton + 100% Merino Wool Liner) - Black - 5.5"

$79
$0

The Ascend 100% Organic Cotton Shorts - Navy - 5.5"

$59
$0

The Ascend 100% Organic Cotton Shorts - Grey - 5.5"

$59
$0

Shop All Polyester-Free Activewear

Ryker 

vs. "The Other Guys"

We're obssessed with bringing you high quality, plastic-free gym clothes. We don't cut corners and we never use polyester or other plastic-based synthetic fibers.

"The Other Guys"

Polyester-Free

Tons of Polyester

No Microplastics

Can Shed Microplastics

Made of Merino Wool and Organic Cotton

Made of Plastic-Based Fabrics

No Endocrine Disrupting Chemicals

May Contain Endocrine Disrupting Chemicals

Naturally Antimicrobial

Traps Heat, Sweat & Bacteria

Minimally Chemically Processed

Heavy Chemical Processing

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What’s wrong with polyester?

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made of

toxic plastic

Polyester is PLASTIC. You likely try to avoid plastic - so do you really want to wear it?

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Endocrine disrupting chemcials

Polyester can have endocrine disrupting chemicals - which can drop your T levels.

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Sheds Microplastics

When you wear polyester, microplastics can shed into your skin and the air around you.

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BPA and "Forever Chemicals"

These "forever chemicals" can leech into our water supply (and your skin).

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Formaldehyde & antimony

Formaldehyde? You mean the toxic chemical they use on corpses? Yup, we do.

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Potential Fertility Impacts

Endocrine disruptors are one reason men's sperm counts are down 50% since 1970.

Natural Fiber Activewear

Why Organic Cotton?

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No toxic pesticides or harmful chemicals

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Naturally soft & breathable

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100% natural, non-toxic fabric

Shop our polyester-free activewear

The Apex Short (100% Organic Cotton + 100% Merino Wool Liner) - Navy - 5.5"

$79
$0

The Apex Short (100% Organic Cotton + 100% Merino Wool Liner) - Black - 5.5"

$79
$0

The Ascend 100% Organic Cotton Shorts - Navy - 5.5"

$59
$0

The Ascend 100% Organic Cotton Shorts - Grey - 5.5"

$59
$0

Shop polyester-free activewear

Nature's Activewear Fiber

Why Merino wool liner?

Black boxer briefs with 'RYKER' branded waistband displayed against a white background.

Naturally stretchy and elastic

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Temperature regulating & NO itch

Black men's boxer briefs with 'RYKER' branded waistband on a white background.

Naturally anti-microbial & anti-odor

Trusted by thousands of real people

From professional athletes to top fitness influencers, see why thousands are ditching polyester and switching to Ryker.

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Finally, polyester-free gym shorts

I was honestly shocked once I learned most gym clothes were made of plastic. Went searching for plastic-free gym clothes & found Ryker - they fit great!

Jason M., Los Angeles

Fits and functions just like big brands

These shorts literally fit exactly like my Lulu shorts. Was skeptical of 100% organic cotton gym shorts at first but these are great!

Connor B., New York City

Super lightweight & stretchy

Surprised just how stretchy & lightweight these shorts are. Very different than other natural brands!

Ethan K., Austin Texas

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FREQUENTLY ASKED QUESTIONS