Finding sustainable, non-toxic activewear can feel like a workout in itself. Between hidden synthetics, chemical finishes, and greenwashing, it’s tough to know what’s truly safe for your skin and the planet. While finding 100% plastic-free workout wear is still a challenge, there are a few brands getting very close – and many others making meaningful strides with safer fabrics, non-toxic dyes, and low-impact production.
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What is Sustainable Activewear?
Sustainable activewear isn’t just about fancy eco-labels or using recycled materials. It’s about what your workout clothes are made from, how they’re made, and what happens to them when you’re done with them. The best sustainable activewear uses safe, low-impact materials like organic cotton & TENCEL™. It also uses safer dyes and finishes that are gentle on your skin and the planet. These clothes are made in ethical factories, built to last, and designed to leave a smaller environmental footprint than regular activewear.
Since you wear activewear close to your skin, especially when you’re hot and sweaty, it’s important to pick better fabrics, not just for the Earth, but for your own health. Sustainable activewear is all about moving in a way that’s good for you and the world around you.
What Makes Activewear Sustainable?
Most activewear today is fast fashion, and made from synthetic materials like polyester, nylon, and spandex. While these fabrics are popular for stretch and sweat-wicking performance, they are still plastic-based materials connected to fossil fuels and microfiber pollution.
Sustainable activewear brands try to improve on this through:
- lower-impact materials
- better labor practices
- more transparent supply chains
- reduced overproduction
- longer-lasting designs
- safer chemical standards
Some brands use:
- organic cotton
- TENCEL™
- merino wool
- recycled materials
- lower-impact dyes
- PFAS-free treatments
However, no activewear is perfectly sustainable. Even recycled polyester still sheds microplastics, which is why I personally prefer brands prioritizing natural fibers whenever possible.
Natural Fibers vs Recycled Polyester Activewear
One of the biggest debates in sustainable activewear is whether recycled polyester is truly sustainable.
Many brands market recycled plastic activewear as eco-friendly because it gives existing plastic another life. However, recycled polyester can still shed microplastics during washing and remains a synthetic material connected to fossil fuels.
Natural fibers like:
- organic cotton
- merino wool
- hemp
- TENCEL™ blends
may be better choices for lower-impact everyday movement, lounging, walking, yoga, and light workouts.
That said, performance-focused activities sometimes require stretch and moisture management that natural fibers alone may not provide.
The goal is not perfection. It is choosing better-made pieces, buying less, and wearing activewear longer.
Best Fabrics for Sustainable Activewear
Organic Cotton
Best for:
- lounging
- yoga
- walking
- everyday movement
Organic cotton is one of the better natural fiber options for activewear, especially for lower-impact movement and everyday wear. It’s breathable, soft, and avoids the plastic microfibers associated with synthetic fabrics.
TENCEL™
Best for:
- soft activewear
- moisture management
- lightweight pieces
TENCEL™ is a semi-synthetic fiber made from wood pulp in a closed-loop process. It tends to feel lightweight, breathable, and smooth against the skin, making it popular in softer activewear styles.
Merino Wool
Best for:
- temperature regulation
- odor resistance
- hiking
- layering
Merino wool is naturally breathable and moisture-wicking, making it a great option for outdoor activewear and layering. It can help regulate body temperature in both warm and cool conditions.
Bamboo
Best for:
- soft activewear basics
- lightweight layers
- lounge and low-impact movement
Bamboo is often marketed as a highly sustainable fabric, but most bamboo activewear is actually made from bamboo viscose or rayon, which is a semi-synthetic fiber that involves chemical processing. While I personally prefer natural fibers like organic cotton, hemp, and wool, bamboo viscose may still be a better option than fully synthetic fabrics like virgin polyester or nylon depending on the blend and brand transparency. If you find bamboo lyocell, that would be the best option.
Recycled Polyester
Best for:
- higher-intensity workouts
- compression
- performance gear
Recycled polyester is commonly used in sustainable activewear because it gives existing plastic materials another life and offers the stretch and sweat-wicking performance many people want in workout clothing.
However, while recycled polyester may reduce virgin plastic use, it is still a synthetic material and may continue shedding microplastics over time.
Why We Should Prioritize Safer, Skin-Friendly Materials in Activewear
Most workout clothes you see are made from polyester or nylon, which come from fossil fuels and are often treated with harsh chemicals. But some brands are starting to use organic cotton, hemp, and TENCEL™ instead. These fabrics are softer, more breathable, and better for your skin. While you still need a little stretch for comfort (like elastane), these brands aim to use as little synthetic material as possible and choose fabrics certified as non-toxic.
Is Activewear Non-Toxic?
Most activewear today is made from synthetic materials designed for stretch, sweat-wicking, and performance. However, many workout clothes can also contain chemical treatments and finishes that raise concerns for both human health and the environment.
Some activewear may include:
- Synthetic dyes
- PFAS (“forever chemicals”) used for water and stain resistance
- Polyester and nylon, which are plastic-based synthetic fibers
- Antimicrobial treatments designed to reduce odor
- Chemical finishes for moisture-wicking, wrinkle resistance, or softness
Because activewear sits so closely against the skin — often during heat and sweat — many shoppers are starting to look for lower-tox and non-toxic alternatives.
While no activewear is likely completely perfect, there are ways to make better choices.
For a lower-tox option, look for:
- OEKO-TEX® Standard 100 certification, which tests textiles for certain harmful substances
- GOTS-certified organic cotton, which includes standards for both organic fibers and processing
- MADE SAFE® certification, which screens products for known harmful ingredients
- PFAS-free activewear
- Natural fibers when possible, such as organic cotton, merino wool, or hemp
- Brands that avoid excessive chemical treatments and are transparent about their materials
I also personally try to prioritize natural fibers whenever possible, especially for lower-impact movement, lounging, walking, and yoga. While some high-performance workouts may require synthetic blends for stretch or durability, many activewear brands now offer softer, lower-synthetic options that feel more breathable and aligned with a more natural wardrobe.
It’s also important to remember that “moisture-wicking,” “performance,” and even “eco-friendly” do not automatically mean non-toxic. Many brands still use vague marketing language without clearly explaining the dyes, finishes, or treatments used in their clothing.
Brands Moving Toward Plastic-Free Performance Clothing
It’s hard to find workout clothes that are totally plastic-free, but some brands are getting pretty close. We look for brands that use a lower percentage of synthetics (aiming for less than 20%) or plant-based elastics that are safer for your skin. These clothes might feel a little different from regular polyester leggings, but they’re still great for working out and leave way fewer microplastics behind!
Say No to “Forever Chemicals” in Your Workout Clothes
PFAS, also known as “forever chemicals,” are sometimes added to activewear to make it water-resistant or stain-proof. But these chemicals can harm your health and the environment. They’ve also been linked to hormone problems, weaker immune systems, and even cancer. Luckily, more brands are promising to keep their gear PFAS-free, so your workout clothes don’t put your health at risk. Check the labels or brand info, and try to buy items that clearly say they don’t use these chemicals.
Our Top Picks for Non-Toxic, Sustainable Activewear:
1. Pact
Materials: Organic Cotton, Elastane
Sizes: XXS-3XL
Price: $34-68
Pact’s activewear sets and leggings provide a clean, conscious choice for workout gear. Made with certified organic cotton and a bit of elastane for stretch, these pieces are soft, breathable, and gentle on sensitive skin.
Pact avoids harmful dyes and finishes, ensuring their activewear is free from toxic chemicals like PFAS. Their entire process is guided by Fair Trade and GOTS certifications, promoting both human and environmental health.
Whether you’re doing yoga or running errands, Pact’s non-toxic sets keep you comfortable while aligning with your values. They are simple, sustainable, and safe for daily wear. This brand is an absolute favorite of mine and I’m usually always wearing at least one of their pieces daily.
2. Tripulse
Materials: TENCEL™ Lyocell, Roica® (a more eco- and health-friendly version of elastane)
Sizes: XXS-6XL
Price: $85-199
As a sustainable brand based in Sweden, Tripulse’s commitment to eco-friendly practices and ethical labor standards is evident throughout their entire supply chain.
Crafted from TENCEL™ Lyocell fibers, Tripulse’s activewear is made from sustainably sourced wood. These fibers are processed in a closed-loop system, which minimizes waste and avoids harmful chemicals, resulting in biodegradable, plastic-free, and toxin-free products – ideal for both intense workouts and everyday wear!
Tripulse upholds stringent social and environmental standards, with all production taking place in Europe under certifications such as GOTS and – of course – OEKO-TEX®. They also source materials from forests managed responsibly, certified by FSC and PEFC, and they have achieved Climate Neutral Certification by measuring, offsetting, and reducing their carbon footprint.
3. MOVE by MATE
Materials: Organic Cotton, Spandex
Sizes: XS-XL
Price: $58-108
MOVE by MATE is the activewear line from MATE the Label, designed for those who want a clean and eco-friendly alternative to typical workout clothes. Each item is made from 92% organic cotton and 8% spandex, providing breathable comfort with a bit of stretch.
This collection is free from harmful substances like PFAS, toxic dyes, pesticides, and endocrine disruptors, making it a safer choice for your skin and the environment. The minimalist design and soft fabrics are perfect for low-impact activities, relaxing, or everyday wear.
Overall, if you value non-toxic, plant-based materials, MOVE by MATE is a great option to consider!
4. PAKA
Materials: Alpaca, Tencel, Organic Cotton, Recycled Nylon
Sizes: XS-XXL
Price: $39-159
PAKA is redefining outdoor clothing with a focus on sustainability, performance & connection to nature. Founded in Peru, the brand partners directly with local artisans and alpaca herders in the Andes to create activewear that’s as ethical as it is high-performing.
Their pieces are made from traceable alpaca fiber, organic Pima cotton, and recycled materials, all processed without toxic dyes or harmful chemicals, so they’re gentle on your skin and the planet.
PAKA’s activewear blends softness, breathability, and natural temperature regulation, making it ideal for both everyday wear and outdoor adventures. Their best-selling Alpaca Hoodie and Ayni Leggings showcase the brand’s craftsmanship and commitment to transparency, right down to QR codes that let you trace the source of your clothing.
5. Boldwill
Materials: TENCEL™ Lyocell, CREORA™, Organic Cotton, Recycled Cotton
Sizes: XS-XXL
Price: $71-134
Boldwill is changing the way activewear looks and feels for women who care about their health, the environment, & lasting quality. Rather than using petroleum-based synthetics, Boldwill chooses non-toxic, low-impact materials like TENCEL™ Lyocell & organic cotton blends. These fabrics are OEKO-TEX® certified, so they’re tested for harmful substances and safe for your skin.
I appreciate that Boldwill focuses on clean comfort and still delivers great performance. Their fabrics are breathable, soft, and stretchy, but don’t have the plastic-like feel of most workout clothes. The company also makes its products in ethical, small-batch facilities, which helps reduce waste and overproduction and supports fair working conditions.
6. Organic Basics
Materials: Recycled Nylon, Elastane, Organic Cotton, TENCEL
Sizes: XXS-XXL
Price: $33-83
Organic Basics is a Danish brand that creates stylish and simple activewear focused on sustainability and comfort. Their SilverTech™ Active line includes items like leggings and sports bras made from recycled nylon, which offers great breathability and support. The fabric is treated with Polygiene®, a recycled silver salt that prevents odors, so you don’t need to wash your clothes as often.
The brand is committed to ethical production, and uses GOTS-certified organic cotton and TENCEL™ Lyocell materials in addition to their SilverTech™. They make sure their supply chain follows strict environmental and social standards.
Additionally, as a member of 1% for the Planet, Organic Basics donates part of every order to environmental initiatives.
7. Cotopaxi
Materials: Recycled Nylon, Organic Cotton, Merino Wool
Sizes: XXS-4X
Price: $30-150
Cotopaxi makes adventure feel both joyful and deeply intentional. Their women’s outdoor activewear collection (filled with colorful fleeces, leggings, windbreakers, and layers) is designed for movement & comfort. Every piece is made with thoughtful materials, including recycled, repurposed, and responsibly certified fabrics, reducing waste while delivering performance that lasts season after season.
Cotopaxi’s signature Del Día collection adds a playful, one-of-a-kind touch with each item uniquely crafted from remnant materials. Beyond their gear, Cotopaxi operates as a Certified B Corp and backs their products with the Guaranteed for Good™ promise, offering repairs or replacements to keep clothing out of landfills.
Through their Cotopaxi Foundation, the brand reinvests profits into communities fighting poverty and working toward a fairer world.
8. Patagonia
Materials: Regenerative Organic Cotton, Recycled Polyester and Nylon
Sizes: XXS-XL
Price: $39-169
Patagonia’s activewear is known for its focus on sustainability and performance. The brand uses eco-friendly materials like recycled polyester, recycled nylon, and Regenerative Organic Certified™ cotton, with a goal of eliminating all virgin polyester by the end of 2025.
Patagonia is also moving towards PFAS-free products, making their gear safer for both users and the planet. With Fair Trade Certified™ sewing and a transparent supply chain, Patagonia ensures that their activewear is both durable and ethically produced.
Whether you enjoy trail running, climbing, or practicing yoga, Patagonia provides reliable and sustainable options for your active lifestyle.
9. Boody
Materials: Bamboo, Organic Cotton, Elastane
Sizes: XS-XL
Price: $8-85
Boody’s activewear line provides a sustainable and comfy alternative to regular workout clothes. Made from a mix of organically grown bamboo viscose, organic cotton, and elastane, their activewear is soft, breathable, and moisture-wicking, making it perfect for low to medium-impact activities like yoga or pilates.
The bamboo used is EcoCert certified and sourced from FSC-certified fields, which highlights its environmental responsibility. Furthermore, Boody’s garments are OEKO-TEX Standard 100 certified, ensuring they are free from harmful substances.
With features like wide waistbands and hidden pockets, Boody blends functionality with eco-friendly design, making their activewear a smart choice for both you and the planet.
10. BAM
Materials: Bamboo, Organic Cotton, Elastane
Sizes: XS-L
Price: $19-120
BAM Clothing creates eco-friendly activewear mainly using bamboo viscose and organic cotton blends. Their clothing is soft, breathable, and moisture-wicking, making it perfect for various activities.
The designs focus on comfort and functionality, featuring supportive leggings and yoga pants with wide waistbands and seamless construction to avoid sagging or discomfort while moving.
As a certified B Corp, BAM is dedicated to sustainability. They use circular design principles and offer recyclable garments. The brand also ensures full traceability in its supply chain and has certifications from the Fair Wear Foundation and OEKO-TEX STeP, showcasing their commitment to ethical production and environmental care.
How Many Workout Clothes Do You Really Need?
The activewear industry has normalized constant newness:
- matching sets
- weekly launches
- “gym outfit hauls”
- trend-driven colors
But building a sustainable activewear wardrobe usually means buying fewer, better pieces you genuinely wear.
For most people, a simple rotation may be enough (this of it as a mini capsule):
- 2–4 leggings
- 3–5 workout tops
- 2 sports bras
- 1–2 layering pieces
- 1 jacket
- 1–2 shorts
The most sustainable activewear is the gear you already own and continue wearing.
What I Personally Look for in Sustainable Activewear
When shopping for activewear, I personally try to:
- prioritize natural fibers when possible
- avoid excessive synthetic blends
- buy fewer matching sets
- focus on long-term wearability
- choose brands with better transparency
- avoid trend-driven overconsumption
No activewear brand is perfect, but I would rather invest in a few pieces I genuinely wear than constantly chase new workout trends.
How to Properly Take Care of Your Sustainable Activewear
Taking care of your eco-friendly workout clothes is good for the planet and saves you money. Even the best-made leggings or sports bras won’t be “sustainable” if they wear out too fast. The idea is to make your activewear last longer, create less waste, and help your clothes work as they should.
You don’t have to wash your workout clothes after every light workout, especially if they’re made from things like organic cotton, TENCEL™, or merino wool. Just air them out between uses to keep them fresh and help them last. When you do wash them, turn them inside out and use cold water with a gentle, unscented detergent. Stay away from harsh chemicals, fabric softeners, and bleach, as they can damage the fabric.
Try not to use the dryer if you can. The heat makes workout clothes lose their shape, stretch, and softness. Instead, lay them flat or hang them up to dry. This helps them last longer, saves energy, and keeps synthetic fabrics from shedding extra microfibers.
To get rid of smells, use natural fixes like soaking clothes in baking soda, rinsing them with vinegar, or letting them air out in the sun. These tricks keep your activewear fresh without using harsh chemicals.
Fix little problems right away, like small holes, before they get worse. Sustainable fashion isn’t just about what you buy; it’s about making your stuff last.
Let me know in the comments below if you try any of these brands!
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About the Author
Natalie Kay Costello is the founder of Sustainably Chic and has been writing about sustainable fashion for over a decade. Her work focuses on ethical brands, natural fabrics, and helping consumers navigate greenwashing in the fashion industry.
