Looking for UK sustainable fashion brands?
This will be your go-to guide with a curation of the very best ethical and eco-friendly clothing and accessories labels based in London and beyond. Many of the brands in this guide also produce their pieces locally in the UK!
For more details on each brand, be sure to read the descriptions and check out each company’s about and sustainability pages.
I’ve also included the size range next to each brand, but I will note upfront that most of these UK labels do not have inclusive sizing. Check out this guide for a list of over 60 plus size sustainable fashion brands.
This article features affiliates and partners. As always, we only feature brands that meet high standards for sustainability that we love — and that we think you’ll love too!
Last updated: February 24, 2021
1. People Tree
A pioneering leader in the ethical fashion movement, People Tree is a Guaranteed Status member of The World Fair Trade Organization, dedicated to fair and transparent production throughout their supply chain. The UK brand’s pieces — ranging from versatile essentials to vibrantly printed dresses — are made in Fair from fabrics like GOTS-certified organic cotton, organic linen, and Tencel.
Size Range: S-L / UK 8-16
2. Beaumont Organic
Beaumont Organic is a sustainable fashion brand from Britain with clothing made from eco-friendly materials such as linen, organic cotton, bamboo, and wool. The label has women’s dresses, tops, bottoms, jackets, knits, and accessories. They’ve also recently launched organic baby clothing!
Size Range: XS-L
3. Rare & Fair
Thoughtfully crafted from conscious fabrics in chic silhouettes, the stunning slow fashion garments from this brand truly are a rare find!
Rare & Fair’s sustainable clothing is all made from natural fibres sourced from small-scale farms and is ethically crafted by local artisan groups in Thailand.
Size Range: XXS-XL
4. MAHI
MAHI is a UK-based leather accessories brand that has a line of eco-friendly cork bags!
Each bag is handmade to order and comes with a cotton interior lining + premium YKK zippers.
There are even a couple of products that you can personalize with a monogram!
5. Thought
Thought is an ethical clothing brand based in North London. As the name implies, this brand is thoughtful in their production, considering both the planet and people through each step of the process. Thought uses sustainable materials like hemp, Tencel, modal, bamboo, cotton, and wool (more about their fabrics here), all sourced from suppliers they have built valuable relationships with. The brand has a wonderful collection of women’s and men’s clothing designed to be wearable, comfortable, and long-lasting.
Size Range: XS-XL
6. Madia & Matilda
Madia & Matilda is a Black woman-owned conscious fashion brand making all of their clothing in-house to ensure transparency and minimal waste.
The label has tees, blouses, skirts, dresses, and trousers at an affordable price point.
Size Range: UK 8-16
7. Bagmaya
Bagmaya is a UK-based sustainable accessories brand that was born from a volunteering project in Nepal and creates ethical backpacks, yoga mat bags and bum bags.
All of their products are handmade in Nepal with hemp, one of the most sustainable natural fibres, ensuring both quality and beauty in their timeless designs. They plant a tree with every order and all of their packaging is plastic-free, recycled and recyclable.
8. Know The Origin
Originally founded as a collection of organic cotton essentials, Know The Origin is now an online marketplace for a vast selection of fashion and lifestyle products from vetted brands.
Size Range: XS-XL
9. Bibico
UK sustainable fashion brand Bibico is dedicated to eco-conscious practices and materials throughout their supply chain. Bibico uses organic cotton for their lighter pieces and wool for their knitwear. The brand works with a cooperative that is Fair Trade certified by the World Fair Trade Organization (WFTO) to produce their simple, cozy, easy-to-wear pieces.
Size Range: UK 8-16
10. Mayamiko
Talk about making a statement! Mayamiko has some super bold, beautiful prints that I am totally in love with. Like Komodo, Mayamiko is proving that ethical and sustainable fashion can be fun and colorful. As proof of their commitment to responsible production, the UK brand is member of the World Fair Trade Organization (WFTO) and uses Global Organic Textile Standard (GOTS) certified organic cotton in their collections.
Size Range: S-XL
11. Komodo
Komodo is a UK-based organic and ethical clothing brand with some seriously fun style! I love that Komodo is willing to go beyond the typical “ethical fashion box” of neutrals and basics with funky prints, unique designs portrayed with artsy, editorial style imagery on their website.
Size Range: UK 8-16
12. Noctu
Noctu is a sustainable loungewear brand with clothing perfect for yoga class, the grocery store, or a good night’s sleep. All of their pieces are made in a Fair Trade, Global Organic Textile Standard, and SA8000 certified factory. (I research a lot of brands and this is definitely not common to work with factories with such high certifications relating to both labor and environmental responsibility!) The brand has comfy, soft tops, bottoms, and nighties/nightgowns for adults and kids!
Size Range: S-L
13. E.L.V. Denim
E.L.V. Denim sources discarded jeans from vintage warehouses around the UK to create sophisticated upcycled jeans. The zero waste fashion brand also uses an ultra-efficient washing process and produces each pair of jeans locally and fairly in East London.
Size Range: 24-32 (jean sizes)
14. Ilk + Ernie
Ilk + Ernie is a fun and quirky UK ethical fashion label based in Brighton. I love their vibrant prints and bold detailing! It’s refreshing to see conscious brands take some risks in their collections and do it so beautifully as Ilk + Ernie does.
Size Range: XS-L
15. RÆBURN
Upcycled fashion brand RÆBURN is is known for their unique pieces made from reworked surplus fabrics and garments. Today the company also has a RÆDUCED collection made from organic fabrics. This innovative UK sustainable fashion brand also offers free lifetime repairs and ships out their pieces in eco-friendly packaging.
Size Range: XS-2XL
16. Peruvian Connection
Peruvian Connection has been working closely with the Peruvian cottage industries and factories where they source their pieces for over 40 years. The conscious brand works closely with the owners of these facilities and makes regular visits to inspect these workplaces to ensure good conditions for workers and fair wages.
Size Range: XS-2XL
17. Nancy Dee
Designed and manufactured in small factories in Britain, Nancy Dee is a UK ethical clothing brand committed to supporting local, ethically. The London-based label also uses eco materials like modal, organic cotton, and up-cycled fabrics. Nancy Dee has versatile pieces perfect for work, going out, or for just hanging out!
Size Range: 8-16
18. P.i.C. Style
P.i.C. Style is a minimal fashion brand producing in a nearby London factory and using locally-sourced eco materials such as organic cotton, recycled fabrics and deadstock. This ethical UK brand’s pieces are simple enough to be versatile but unique enough to stand out. I particularly love the lace detail and bows they incorporate in some of their styles. P.i.C. Style also sells consciously-made shoes and accessories from other brands on their site.
Size Range: XS-L
19. COSSAC
COSSAC is a London-based ethical and eco brand making quality pieces within Europe (specifically in ISO and GOTS-certified factories in Turkey and Portugal). The UK sustainable fashion label uses ecologically-minded fabrics such as organic cotton, Tencel, and Modal and ensures their elegant and feminine garments are made to last.
Size Range: S-L
20. Nude Ethics
Nude Ethics is a UK-based sustainable basics brand. The label’s pieces are made from organic cotton and cellulose fibre thread. Each piece is produced in a sustainable state-of-the-art vertically integrated factory in India and embroidered in Cornwall, England by the brand’s founder Jessica.
Size Range: XS-3XL
21. Study 34
Study 34 is a luxury knitwear brand producing their eco-friendly sweaters consciously in the UK. The knitted pieces are made using 100% natural fabrics — specifically, alpaca wool and Pima cotton. Study 34 sources the highest quality options available for these fabrics for luxurious and long-lasting pieces. The designs are also simple and timeless, so you’re guaranteed to find a sweater that will last you a lifetime.
Size Range: UK 8-16
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