Your Skin is Your Largest Organ. So Why Wrap It In Plastic?
You know what BPA, PFAS, and microplastics do to the endocrine system.
You advise patients against them. And you've eliminated exposure in your own life. So why settle for plastic shorts?
Upgrade Your Activewear
Trusted by 5,000+ healthcare professionals
100% NATURAL FABRICS
3RD PARTY TESTED NON=TOXIC
THIRD
PARTY
TESTED
BUILT-IN-LINER
MERINO WOOL
LINER
NATURALLY SWEAT WICKING
NATURALLY SWEAT WICKING
You Know The Science.
Microplastic Exposure
Polyester is plastic. Every time you wear polyester, over 700,000+ microplastic fiber shed onto your skin, into the air and eventually into our water supply.
Potential Fertility Impacts
A peer-reviewed study showed wearing polyester underwear drove sperm count to zero in clinical subjects within 140 days. Synthetic fabrics in sustained dermal contact are now under investigation as a contributing factor in male hormonal disruption.
Endocrine Disruption: BPA & Phthalates
Independent testing of 100+ activewear brands found high concentrations of endocrine-disrupting BPA — some at 40 times the safe threshold. These aren't trace amounts. They're clinically significant levels pressed against the body's largest organ during exercise, when pores are open and absorption rates spike.
PFAS and "Forever Chemicals"
The moisture management properties marketed by major brands often come from per- and polyfluoroalkyl substance (PFAS) coatings — the same persistent compounds you've seen linked to reproductive harm in peer-reviewed literature.
Our Solution
Activewear That Aligns With How You Practice.
The Apex Short - Made of 100% Organic Cotton & Merino Wool
Made of Natural Fibers
We use 100% organic cotton & 100% Merino wool - no polyester or plastic-based fabrics.
Certified Non-Toxic
Our organic cotton is GOTS certified and our suppliers hold OEKO-TEX Standard 100 certifications, ensuring no harmful chemicals commonly found in traditional activewear.
Breathable & Odorless
Our organic cotton is highly breathable and our Merino wool naturally resists bacteria growth, so you can wear them longer and wash them less.
Made of Natural Fibers
We use 100% organic cotton & 100% Merino wool - no polyester or plastic-based fabrics.
Certified Non-Toxic
Our organic cotton is GOTS certified and our suppliers hold OEKO-TEX Standard 100 certifications, ensuring no harmful chemicals commonly found in traditional activewear.
Breathable & Odorless
Our organic cotton is highly breathable and our Merino wool naturally resists bacteria growth, so you can wear them longer and wash them less.
Athletic Fit & Feel
Our shorts don't fit like some nerdy health product. They have the same exact "activewear" fit you need - without the plastic fabrics.
3rd Party Tested
Not only do we rely on third party certifications, we independently test all of our fabrics - they're completely free of BPA, PFAS, and hormone disruptors.
Super Soft & Comfortable
We use superfine organic cotton & Merino wool - ensuring the softness and comfort you need.
Athletic Fit & Feel
Our shorts don't fit like some nerdy health product. They have the same exact "activewear" fit you need - without the plastic fabrics.
3rd Party Tested
Not only do we rely on third party certifications, we independently test all of our fabrics - they're completely free of BPA, PFAS, and hormone disruptors.
Super Soft & Comfortable
We use superfine organic cotton & Merino wool - ensuring the softness and comfort you need.
SHOP NATURAL FIBER ACTIVEWEAR
Certified & Lab Tested Non-Toxic Gym Shorts
The Apex Short - (100% Organic Cotton + 100% Merino Wool Liner)
100% organic cotton outer short + 100% organic Merino wool liner
Organic cotton from GOTS-certified sources + fabrics from OEKO-TEX certified partners
Fits just like Lululemon shorts
Naturally stretchy, temperature regulating and odor resistant
$66.00
Select Size:
XL
XXL
Small
Medium
Large
XL
XXL
These Run Small, We Recommend Sizing Up!
Select Color:
Select Inseam:
5.5"
7"
5.5"
7"
Quantity
Pre-Orders Ship November 9th!
BUY ONE GET ONE 30% OFF + Free Shipping
The Apex Short
$99.00
$68.30
SAVE 30%
Added! Click "Add To Cart" Below for 30% Off
100% Natural Fibers
Certified Non-Toxic
3rd Party Tested BPA & PFAs Free
SHIPS IN 24 HOURS
90 DAY EASY RETURNS
FREE SHIPPING OVER $150
Description
- 100% organic cotton outer short + 100% organic Merino wool liner
- Organic cotton from GOTS-certified sources
- OEKO-TEX Standard 100 certified fabrics & dyes
- Our fabrics are 3rd party tested BPA, PFAS and phthalate free - see report here
- Our Merino wool is not superwashed - it's processed using an organic, plastic-free treatment - learn more here
Enough with the polyester shorts with the toxic liners. Switch to Apex shorts made with natural fibers.
Guaranteed to be the most comfortable gym short you've ever worn.
Size Chart
Runs small - we recommend sizing up!
Materials and Care
Shorts: 100% Organic Cotton
Liner: 100% Organic Merino Wool
Care Instructions: Machine wash on cold with gentlest setting available. Wool specific setting if possible. Gentle washing avoids felting and shrinking.
Lay flat to dry. Do not tumble dry.
Wash only when needed - Merino naturally avoids odor, meaning less washing is needed!
Shipping & Returns
FREE Shipping on orders $150+.
If you don't love it, return it (unused) in 90 days for a full refund.
Care Instructions
Cold wash & hang to dry.
Certified & Lab Tested
Our products use certified materials & 3rd party tests to guarantee our gear is free of harmful chemicals.
GOTS Certified Organic Cotton
Grown without pesticides or harmful chemicals, our cotton is safer for your skin and better for the planet.
OEKO-TEX Certified Materials & Dyes
Our facilities only use OEKO-TEX Standard 100 certified materials - to avoid the toxins found in traditional apparel.
Third Party Lab Tested
Completely free of BPA, PFAS ("forever chemicals"), and phthalates - so you can trust you're safe.
See Full Lab Results
Trusted by Health Practitioners and Leading Biohackers
"Ryker is changing the game with gym clothes. What I like is that Ryker's shorts still fit like gym shorts & don't feel like some nerdy "health product" - but they're toxin free, 3rd party tested, and made of 100% natural fabrics. They're now the only shorts I want to wear."
- Ben Greenfield
Athlete, Biohacker, Fitness Coach
Join Ben & 50,000 others who have made the switch to natural fibers
Why Practitioners Are Making the Switch...
MH
Dr. Travis W.
Naturopath
Portland, OR
I can't tell patients to reduce exposure and then train in polyester.
"I spend my days helping patients identify and eliminate sources of endocrine disruption. When I realized my own gym clothes were a source of BPA and microplastic exposure, the contradiction was impossible to ignore. Ryker is the only activewear I've found that meets the standard I set for my patients. I recommend it in practice now."
MH
Dr. Chris S.
Chiropractor
Los Angeles
The lab results convinced me. The comfort kept me.
"I'm trained to evaluate evidence. Ryker's third-party lab results showing zero BPA, PFAS, and phthalates were exactly what I needed to see. The Merino liner is genuinely more comfortable than any synthetic I've worn. I wear these to the clinic, to the gym, and on weekends."
MH
Andrea K.
Acupuncturist
San Francisco
This is what I've been recommending to clients. It finally exists.
"I teach a course on reducing environmental toxin exposure. Clothing has always been the gap — I could never find activewear that met the standard. Ryker fills it completely. 100% natural fibers, third-party tested, published results. I've already referred dozens of clients and students."
Ryker
vs. "The Other Guys"
Once you see - the choice is clear.
100% organic cotton +
100% Merino wool
Zero endocrine disruptors, 3rd party tested
No microplastic shedding fabrics
Naturally wicks sweat & controls odor, keeping you fresh
Made from nature, optimized for health and performance
"The Other Guys"
100% Plastic (polyester, nylon, spandex)
Often contains high levels of BPA, phthalates, and "forever chemicals"
Up to 700,000 microplastics shed per wash & wear
Traps heat & moisture, making you sweat & stink
Made from plastic bottles, optimized for profit
Shop natural fiber activewear
Shop All Of Our Natural Shorts & Underwear
Buy One Get One 30% Off
SHOP NATURAL FIBER ACTIVEWEAR
Frequently Asked Questions
How do these compare to synthetic brands like Lulu?
Our shorts fit & perform exactly like your Lulus - same athletic cut & range of motion. We've also meticulously designed them with a specialized knit & weave to give them stretch without elastane blends.
The difference is what they're made of. Big brands are made of polyester & nylon (petroleum based plastic). We use 100% organic cotton & Merino wool.
Same fit and function, zero plastic fabrics, zero endocrine disruptors. Most customers who switch tell us the merino liner actually handles moisture and odor better than any synthetic they've worn.
What's the science behind the harms of polyester?
We get it - health claims can often feel like noise. But here's what the research actually shows: peer-reviewed studies have linked polyester undergarments to reduced sperm count, and independent testing has found BPA levels in major activewear brands at up to 40x the legal safety limit. PFAS - classified as 'forever chemicals' by the EPA — are commonly used in moisture-wicking treatments on synthetic fabrics.
Chemicals like BPA and PFAS have been shown to be endocrine disruptors that can impact testosterone and fertility - even at small levels of exposure.
This is why we publish our third-party lab results showing zero BPA, zero PFAS, and zero phthalates in our gear. You can view them here.
Why is it $99?
Organic cotton and merino wool cost substantially more than petroleum-based polyester — because they're not derived from plastic.
Most premium activewear brands charge $70-100 for shorts made from materials that cost a fraction of what ours do. We charge $99 for shorts made from certified organic, independently lab-tested natural fibers. Most of our customers spend more than $99/month on supplements alone. Our shorts are a one-time investment in removing a daily source of endocrine disruptor exposure.
We're proud that we're still priced competitively to premium brands like Lululemon, Vuori, and Rhone - despite using high quality, 100% natural materials.
What are GOTS & OEKO-TEX Standard 100?
GOTS is the Global Organic Textile Standard. It means our cotton has been grown & processed without the synthetic pesticides or toxic chemicals (like formaldehyde), commonly found in conventional cotton.
OEKO-TEX Standard 100 means all of our fibers, fabrics, and dyes have been 3rd party tested for a variety of toxic substances - including BPA, PFAS and other endocrine disruptors. When you wear Ryker, you can be confident you're only wearing the best.
Are your clothes 3rd party tested?
Yes. Not only do we rely on regular factory audits from the governing bodies of GOTS & OEKO-TEX Standard 100, but we also independently test our fabrics & end garments.
You can see our latest test here. Completely free of BPA, PFAs, and phthalates.
What size should I get / will your products shrink?
We almost recommend customers "size up" from whatever they wear in synthetic brands. For example, if you're a medium in Lulu shorts, opt for a large in Ryker.
This is because our gear tends to run a bit small + shrinks ~5% in the wash. This is inherent to a high quality natural fiber.
"Pre-shrunk" cotton is often treated with harmful chemicals to make it that way - and that's not what we're about.
We always recommend washing on the most gentle setting available + laying flat to dry to reduce shrinkage.
What's the return policy?
90-day returns on unworn products. No questions asked. We want you to be confident in the purchase, and we stand behind the product. If it doesn't work for you, send it back.
Shop natural fiber activewear
You Practice Clean Living. Now Wear It.
You already know what synthetic fabrics do to the endocrine system. Your clothing should reflect that.
Upgrade My Activewear
