1. Plainandsimple
Plainandsimple makes every piece from Global Organic Textile Standard (GOTS) certified organic cotton. This shows me they care about the environment and people. They take it a step further. Their entire production process is plastic-free. Even the threads and labels have no plastic.
Plainandsimple sustainable features
Plainandsimple service
The fabric is thick, high-quality, and strong, keeping its shape after many washes.Basic items, like black and white t-shirts, receive praise for their quality and fit.In my opinion, the quality and weight of the material are worth the price.In the meantime,fast delivery and a lifetime guarantee improve the experience and add peace of mind.
Fast Facts
- Use 100% GOTS certified organic cotton and components with no plastic.
- Business model is circular, with a lifetime guarantee and free returns for recycling.
- They reward you for sustainable choices with 15% off your next purchase.
- Clothing is made for a full life, from being worn to being remade.
Plainandsimple is more than another sustainable UK Sportswear brand. It‘s like a model for the future of apparel that is good for the Earth. They are transparent, offer top quality, and have a take-back promise that completes the cycle.
2. Berunwear
It’s hard to scale eco-sportswear production while keeping a personal connection, but Berunwear as a genuine partner in the industry. I recommend them for their mix of sustainability, flexibility, and manufacturing power. This UK-based company is especially good for new brands or growing teams.
Berunwear Sustainable features
Berunwear’s commitment to the planet is real action, not just words. They use 100% recycled polyester and elastane to make their sportswear. They select these fabrics because they are lightweight, quick-drying, and very durable. I believe this is more than green marketing; it is a real upgrade for your gear during workouts, bike rides, or games.
Teamwear and activewear, running kits, Cycling Jerseys and sublimated event wear. For every item, you can select eco-certified fabrics. This choice helps your brand’s reputation and your own conscience.
Primary service
Berunwear’s production capacity impressive for an eco-focused brand. They have their own 10,000-square-meter factory with 115 skilled workers. They can make over 100,000 pieces every month and up to 7,000 pieces per week. This shows they are prepared for major product launches or sudden growth.
What I think is the biggest advantage for new brands is the minimum order quantity (MOQ) of just 10 pieces. This means you don’t need to risk a huge investment. You can easily test a new cycling top or outfit a small club. Berunwear grows with you.
Customization Eco Story
If you want a distinct sportswear identity, I suggest looking at Berunwear’s design team. They help you with ideas, prototypes, and samples until the design is perfect. Their private label services cover everything—you can choose your own logos, labels, packaging, and even eco-certification badges.
The numbers are impressive. In the last five years, they have created over 8,000+ custom labels. This gives brands and teams a great way to display their commitment to sustainability.
Berunwear as a co-creator for eco-conscious sportswear brands, not simply a manufacturer. They have deep experience and flexible production capabilities. Their creative customization options and global delivery make them a solid partner.
3. BAM
BAM mission centers on bamboo. It’s a fast-growing plant with a low environmental impact. They use it to create sportswear that feels amazing and looks great.
Bam sustainable features
BAM started the bamboo movement back in 2006. Their commitment to environmental and social responsibility is real. It’s not just talk; it guides everything they do.Most of their clothes are made from organic and circular bamboo fibers. This includes their squat-proof Enduro leggings and recycled fleece gilets.Every item of them to be recyclable. This supports a circular model, so your gear stays out of the landfill.
Primary Products & Styles
- Durable Leggings: The Enduro series has wide waistbands and offers great support.
- Luxury Yoga Tops: Made with bamboo modal and have V-scoop necks and crossover backs. Wide straps give you the support you need for comfort and performance.
- Rich Variety: Choose from earthy colors or bold, nature-inspired prints.
- Smart Crop Tops & Shorts: Using recycled fabrics and the designs are eye-catching, combining style with sustainability.
Value, Praise, and Community
Sustainability editors have praised the brand. It has also been featured in many lifestyle magazines for its green approach and statement prints.
I appreciate their commitment to transparency. BAM lets you track the supply chain for every item, which gives me peace of mind about their ethics and sourcing.And you can get up to 51% off on certain new items. This shows that making green choices doesn’t have to be expensive.
BAM brings together comfort, style, and sustainability. They are doing more than just making green sportswear that changing how we think about moving with intention.
4. Tala
Tala is a top UK brand for sustainable activewear. What impressive is that they make big environmental promises and actually keep them.
Tala eco-friendly features
Tala makes its sportswear using at least 50% sustainable materials. I’m talking about recycled and plant-based fibers. These fabrics feel great and have a smaller impact on our planet. From my experience with their SkinLuxe leggings and the popular DayFlex and Sculpt Seamless lines, each collection shows a real commitment to reducing fabric waste.
They are completely open about how they operate. They share details about their materials and the whole supply chain. Their gear arrives in biodegradable packaging that breaks down over time. It also comes with plantable swing tags. When you open your package, you can actually grow wildflowers from the tag. I think that’s a brilliant touch. The company also avoids extra paper packaging, setting a great example for cutting waste.
Ethical Production
I care about who makes my clothes, and I find Tala’s story reassuring. Their activewear is made in ethical factories across Portugal, Turkey, and China. In these places, the staff receive fair wages and have safe working conditions. I believe this global approach makes responsible fashion available to more people without cutting corners on worker welfare.
Tala become very popular with young, eco-conscious shoppers. This is a group that wants both style and sustainability. Tala’s collections offer the sleek, functional look you’d expect from high-end athletic wear. But they also have real green credentials.Tala is expanding beyond sportswear. They are introducing everyday staples to make your entire wardrobe more sustainable.
Circular Goals
Tala’s long-term goal is clear: a circular business that creates zero waste. I see them already setting new standards for closed-loop production in the UK activewear scene. It shows me they are a brand building for the future, not just for today.
Tala isn’t just following green trends. They are defining how style, ethics, and sustainability should work together in modern sportswear.
5. Feel Fit
Feel Fit does more than just put an “eco” label on a shirt. They build a planet-first attitude into every thread, every action, and every customer interaction.
Feel Fit’s Green Materials features
What makes Feel Fit different? I learned they make their collection with ECONYL®. This is a renewed nylon created from plastic waste recovered from oceans and landfills. The material is not just recycled; it is completely re-imagined. It gives you the performance of standard nylon without the damage to the environment. They also use organic and recycled cotton and repurposed nylon. I appreciate that they avoid traditional synthetic fabrics like new nylon and polyester, which are major sources of pollution.
Every piece of clothing, whether for the gym or a casual day, proves the brand’s mission. They want to protect the planet and help you look good.
Ethical Production
Ethics are at the core of what they do. I found that their clothes are made in Bali by a team that gets fair treatment and good pay. This ensures you get high-quality clothing with a clear conscience. I also recommend checking out their sizes, which range from UK 6 to UK 22. This shows me the brand is committed to including everyone. No one is left out of this movement for better activewear and a healthier planet.
Action Beyond Apparel
I can see their eco-focus is real action, not just words. For each item sold, Feel Fit plants two trees. This is a concrete, trackable impact that grows with every single purchase. They also participate in projects that remove plastics from the ocean. Their goal sums it up perfectly: “Protect the planet and our oceans, one garment at a time.”
Their commitment extends beyond just materials. Their retail store runs on energy created by indoor spin bikes. Every mile you ride helps power the space. What I find amazing is that 74% of the energy from these workouts goes back to the local grid. It’s a full-circle fitness experience. You burn more calories, create more energy, and support a carbon-neutral business. I think the idea is simple and brilliant.
Feel Fit sets a new standard for green sportswear in the UK. I find it so refreshing to see a brand that doesn’t just talk about sustainability but acts on it in every stitch, every sale, and every spin class.
6. Chelsea Peers
For sustainable sportswear brands in the UK for 2025, Chelsea Peers is in its own category. They prove their commitment through actions, not just words. If you care about green activewear, responsible sourcing, and truly transparent business, I suggest giving Chelsea Peers a serious look.
Certified Sustainability
Chelsea Peers earned its B Corp certification at the end of 2024. They didn’t just pass; they achieved an Impact Score of 99.8. That’s almost 20 points over the strict requirement. It’s also about 50 points higher than the average score for other businesses. To me, this isn’t a simple badge. It clearly shows they meet some of the world’s highest standards. They are judged on environmental action, social good, and honest practices.
Product Focus
79% of all their materials were classed as “more sustainable.” you’ll find certified organic cotton, recycled fibres, and TENCEL™ Modal in their new releases. This shows me their promises are real, not just marketing.
They improved again, using 81% sustainable fabrics across all products. Based on my observation, this steady progress shows this is a brand that sets and achieves its goals.
Many people recognize Chelsea Peers for their famous nightwear and loungewear. For 2025, I’ve seen that their swimwear and easy-to-layer pieces show the same commitment to low-impact fashion. For lazy Sundays or gym workouts, you get the same earth-first thinking in every item.
Green Initiatives
Since 2021, Chelsea Peers has offset 100% of its CO2 emissions from shipping.What does that mean? They have balanced out the carbon equal to 94 acres of forest. I think that’s a real, measurable impact.They are also open about their goals to reduce greenhouse gases. I appreciate that they tackle environmental issues at every step of production.
Chelsea Peers is a proud member of the global B Corp community, which now has 8,000 organizations. Their promise is simple: People and planet above profit. I believe every choice they make, from fabrics to shipping, reflects this. These decisions aim for continuous improvement in three key areas: better products, a smaller effect on the planet, and fair treatment for everyone involved.
Chelsea Peers doesn’t chase green trends—they set standards. I’ve found their B Corp status and high targets for eco-materials are backed by action. They have a loyal and outspoken customer base. I feel their approach to sustainable UK loungewear and activewear is both fresh and real.
7. Rapanui
Rapanui is a UK sportswear brand with real integrity. Their sportswear is different that focus on three key things: circular design, traceability, and new materials.
Redefining Green Materials
Rapanui builds its “better basics” on certified organic cotton and recycled materials. They don’t take shortcuts. I really like their use of new fabrics like Eucalyptus Tencel. Lenzing, the maker, calls it the world’s most planet-friendly fiber. From performance tees to comfy sweatshirts, you will find their gear uses materials that are good for the earth.
Rapanui service
For me, this is where Rapanui really sets itself apart from other UK brands. They design every product to be part of a circle. When you have worn something out, you just send it back. Their recycling program gives your old clothes a new purpose. This keeps fabric out of landfills and reduces textile waste. I see this as a smart, future-focused approach.
I have to mention one of my favorite features: Rapanui’s “digital trace maps.” I can use a few clicks to see the entire journey of my new workout top, from the farm to the store. With so much “greenwashing” out there, I find this level of honesty refreshing. This is award-winning, proven transparency.
Eco-Friendly Powered by Nature
The whole Rapanui factory runs on 100% renewable wind power. You can see the results in their numbers. They report an 80% reduction in CO₂ emissions for each product compared to typical clothing manufacturing. In my opinion, all companies should operate this way. Rapanui shows it can be done.
Rapanui is the model for planet-friendly UK sportswear in 2025. Their materials are well-sourced, their products are made in a circular system, and they use renewable energy. You can even trace every item.
8. Silverstick
Since 2010, they have made gear for explorers who care about the environment. Silverstick creates clothing for men, women, and children. I can tell each item is designed to last a long time and to respect nature.
Silverstick recycled features
For their hoodies, joggers, and tees, they use certified organic Aegean cotton. This material is special because of its great softness and strength. It’s grown without pesticides and has a GOTS certification, which is a top standard for eco-friendly fabrics. They also use recycled polyester and accessories made from organic cotton, merino, and alpaca wool. This gives you more sustainable choices.
Products & Service
I appreciate that Silverstick is serious about slow fashion.Their hats, socks, and scarves are made in fair factories in Turkey. These factories are checked each year to meet high standards for workers and the environment. By making their accessories in Britain, Silverstick supports local skills and shortens its supply chain to lower its impact on the planet.
- Hoodies, sweats, and joggers: These are made with pure organic cotton.
- Graphic tees & polos: I love the original artwork. They are soft, strong, and made to last for years, not just a season.
- Hats, socks & scarves: These are made in the UK from merino, alpaca, and organic cotton. They provide natural warmth with no compromises on quality.
The Silverstick Sustainable Idea
For me, the small details show their commitment. Silverstick uses dyes that are low-impact and non-toxic. They are certified by Oeko-Tex and GOTS, so you know they are free from harsh chemicals. The ink for their prints is water-based and plastic-free. This means you get cool, adventure-themed designs without the environmental cost. Their packaging is also recyclable. I feel they have designed every step to have a low impact on the planet.
- “Made for life” idea: They encourage buying fewer items and having more adventures in gear that lasts.
- Caring for the environment: From the material to the maker, every part of the process respects workers and nature.
- A spirit of adventure: The founders believe our journeys should leave behind memories, not waste. I completely agree with that.
9. Girlfriend Collective
Girlfriend Collective is changing the game for sustainable activewear in the UK. Their approach is simple but effective. They combine ethical production with eco-friendly ideas and include everyone. Plus, their clothes look great.
Girlfriend Collective Recycled Features
Every pair of leggings, sports bra, and top is made from recycled plastic water bottles and old fishing nets. I find it impressive that they turn trash into high-quality activewear.I really appreciate their commitment to certified fair labor. Their rule is simple: if workers aren’t treated well, the clothes don’t get sold.
Girlfriend also helps you recycle old clothes with their ReGirlfriend program. It’s a great system:You can send back old items, even from other brands.They recycle and remake them, which helps reduce landfill waste.As a bonus, you get up to 30% off your next buy.
Activewear for Every Body
These leggings are famous for a reason. You can choose high-compression for tough workouts or a comfortable fit for daily life.I recommend these for their great shape, support, and breathable recycled fabric.For 2025, I see Girlfriend Collective using more bright colors and fun patterns. It’s an easy way to make your gym clothes more exciting.
This is where Girlfriend Collective really excels. I love that they offer a size range from XXS to 6XL. Everyone is welcome. This makes their UK fans as diverse as the country. This is what true representation in activewear should look like.
Girlfriend Collective Marketing Idea
Girlfriend Collective invests a lot in its community and sharing stories. You can expect:
- New bright colors and cool prints released all year.
- Fun pop-up shops and other events that make shopping with them an experience.
- Marketing that features real people of every shape and size.
Girlfriend Collective is more than just another sustainable brand in the UK. They show us what the future of activewear can be: ethical, inclusive, and stylish. Their use of recycled materials, their takeback program, and their focus on real people are setting a new standard for other companies.
10. Findra
If you love the outdoors and care about the planet, I think you should check out Findra for your 2025 UK sportswear needs. This Scottish brand is different. They don’t just make “green” promises. They are changing how sportswear can help both people and the environment.
Findra Sustainable features
What makes Findra special? Most of their gear, over two-thirds, is made right here in the UK, with a focus on Scotland and England. Their main material is Merino wool which is a renewable and biodegradable fiber. It performs much better than synthetics that can harm the environment. This wool is kind to the planet and provides soft, durable comfort. It’s perfect for hiking, cycling, or any active day.
They make leggings from ECONYL®, which is regenerated nylon. This production happens in Portugal and follows strict EU rules for green and ethical manufacturing. About 30% of their items come from China. For these, Findra works with certified factories. I like that they require proof of green practices and positive worker conditions.
Lasting Product
Findra’s approach is the opposite of fast fashion. They believe in slow, thoughtful design. Each item is built to last, mixing style with practical strength. For example, their popular Route Seamless Merino T-Shirt (£80), useful Trail Shorts (£90), and the light Maisie Merino-Lite Tee (£60) are great investments. I believe this gear is made for real adventures and will last much longer than a single season.
Their clothes are tough enough for rugged trails. But they are also designed for repair and long-term use. Findra encourages you to keep your gear for years. This helps reduce waste and makes your outdoor adventures sustainable.
Redefining Sustainable Sportswear
The company keeps growing. For its tenth anniversary in 2024, Findra raised £600,000 in new funds. Half of this came from an exciting crowdfunding campaign to support their growth. It’s clear why they are a Scottish EDGE winner and have succeeded in programs like Entrepreneurial Spark.
What I admire most is Findra’s focus on community. Their mission is clear in everything they do. They empower women in the outdoors. They create clothes that build confidence for adventure. They also promote a spirit of protection for our forests, land, and oceans. The name “Findra” comes from Scandinavian and Gaelic roots. To me, it is more than a brand name; it’s a promise to be a protector for nature and the people in it.
Findra is more than a sustainable sportswear brand. They are an inspiration. They support slow fashion, local manufacturing, and an active, connected lifestyle. Everything they do has a genuine Scottish heart.
Common Key Materials & Green Practices
Top Green Materials
- Organic Cotton
- Recycled Polyester & Technowool
- Bamboo and Hemp
- TENCEL™ Lyocell (Viscose Alternative)
Sustainability Goals Based on Science
- Merrell’s goal is to use 100% organic, recycled, or renewable materials in all its products by 2025. This ambitious and commendable.
- Adidas has promised that 90% of its products in 2025 will follow strong sustainability rules.
- UK brands generally are setting clear annual targets. They also report on these targets. These goals aim to cut down on carbon emissions, use less water, and depend less on new materials.
Sourcing Trends for 2025
Focus on Sustainability
Popular Materials & Smart Technology
For 2025, sourcing is not just about the materials in a piece of clothing. It’s about how brands can prove their claims.Recycled materials are becoming common. I’m talking about ocean plastics, fishing nets, and old PET bottles. These materials are now the standard for high-performance and daily activewear.Technology helps with this. Brands use new tools and even blockchain. This lets them track each item in real time, from start to finish.I’ve also seen a rise in custom options, like on-demand sizing. Brands are using tech to make products last longer, too.
What’s Popular in 2025
- Earthy, neutral colors like sage green, olive, and terracotta are popular. I think they show a connection to nature. You will see them in many 2025 collections.
- For younger, high-energy shoppers, electric blues, neon greens, and hot pinks appear in high-performance and gym wear.
- Monochrome styles like black, white, and grey are still very popular. I find they appeal to buyers who want a simple look that makes a strong statement.
- New shapes change our wardrobes. Think Pilates pants and 80s-style unitards. They mix old-school style with modern green design.
Related Reading:Which is the best clothing manufacturer for unbranded sportswear wholesale in the UK
summary
After looking into these ten brands, I’m genuinely excited. I believe 2025 is a major moment for eco-friendly sportswear in the UK. Each company shows that you can get high-performance gear that is also good for the planet.
For example, I was impressed by Plainandsimple’s recycling-focused approach and Findra’s quality Scottish-made clothing. From my experience, choosing ethical activewear isn’t a step down—it’s a step up. This is the new direction for fitness fashion, and it’s exciting to see how green it is.
If you are looking for a eco-friendly custom sportswear supplier, you can contact us at Berunwear or [email protected].
