40 Sustainable Fashion Brands for Earth Day 2025

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Happy Earth Day! The theme for this year’s earth day is Invest In Our Planet, an important message we can take and influence our decisions towards a more sustainable future.

Over 8% of greenhouse gas emissions are caused by the fashion industry, which exceeds air travel and maritime travel emissions combined. In addition to the carbon emissions, the fashion industry is estimated to create over 92 million tonnes of waste every year, most of which end up in landfills, including waste plastics and polyester, which won’t biodegrade for hundreds of years.

Here at Ecothes we believe that making small changes in our consumer habits, buying fewer clothes, wearing your clothes more, and supporting sustainable and ethical brands when you shop helps contribute to the movement towards a more sustainable future.

We have some great resources if you’re looking to learn more about the fast fashion industry’s damaging effects on the planet. Our guides are written to help you discover new sustainable brands promoting the use of eco-friendly materials and ethical production.

Below we’ve highlighted a few of our favorite brands for you to discover this earth day!

Jump to our Earth Day Favorites

    10 Stylish Women’s Sustainable Fashion Brands

    If you’re looking to discover women’s sustainable fashion brands, we have loads of great recommendations to tailor your wardrobe to include eco-friendly essentials, including Sustainable Size Inclusive brands, workwear brands, blazers, dresses, and swimwear.

    Alternatively, check out a few of our favorite and most loved brands below.

    1. Reformation

    Reformation Made in the USA

    Sustainability: Stylish ethical clothing made with sustainable materials and deadstock materials.

    Best for: Dreamy Dresses, blouses, and jeans

    Ships to: Worldwide

    2. Vetta

    Sustainability: Capsule wardrobe collection made ethically from eco-friendly materials

    Best for: Capsule Wardrobe clothes

    Ships to: The US

    Vetta Earth Day

    3. Valani

    Valani Earth Day

    Sustainability: Clothing made locally in the USA from plant-based materials

    Best for: Dresses, vegan clothing

    Ships to: the US

    4. Graceful District

    Sustainability: Made in USA clothing from natural materials, including organic cotton and eco-friendly dyes

    Best for: Sweatshirts, organic cotton t-shirts

    Ships to: the US

    Graceful Distric Earth Day round up

    5. Organic Basics

    Organic Basics earth day round up

    Sustainability: High-quality GOTS certified organic cotton basics made ethically using sustainable production practices

    Best for: Sweatshirts, t-shirts, organic cotton underwear

    Ships to: Worldwide

    6. Colorful Standard

    Sustainability: Biodegradable sunglasses and colorful basics made with GOTS certified organic cotton in an ethical factory in Portugal

    Best for: Sweaters, sweatshirts, shorts, sunglasses

    Ships to: Worldwide

    Colorful Standard

    7. Thought

    Thought Earth Day

    Sustainability: UK-based Ethical clothing brand creating clothing from responsibly sourced materials, including organic cotton and hemp

    Best for: Casual clothing, including dresses, underwear, tops, and shirts

    Ships to: Worldwide

    8. Sézane

    Sustainability: Certified B Corporation creates stylish French-inspired clothing ethically from sustainable materials

    Best for: Parisian inspired looks, summer dresses, clothing, and accessories

    Ships to: Worldwide

    Sezane sustainable fashion

    9. Birdsong

    Birdsong patchwork print skirts handmade in the UK

    Sustainability: UK clothing creating handmade clothes in London from sustainable materials. Birdsong supports marginalized women in London, providing them with jobs, support, and living wages.

    Best for: Skirts, dresses, organic cotton T-shirts

    Ships to: the UK & International

    10.

    Sustainability: Certified B Corporation creates premium basics from responsibly sourced Egyptian cotton. Kotn has a fully traceable supply chain and ensures fair wages and treatment of workers throughout their supply chain.

    Best for: Tshirts, shirts, pants

    Ships to: Worldwide

    KOTN ethical clothing

    9 Sustainable Menswear brands

    Check out our favorite sustainable men’s clothing brands below. If you want to discover more great eco-freindly brands, take a look at our articles on men’s sustainable fashion and mens swimwear.

    1. United By Blue

    United By Blue sustainable clothes

    Sustainability: Certified B Corporation. Sustainable clothing brand removing trash from oceans for every product sold. UBB uses sustainable materials and ethical production to create its clothing.

    Best for: Casual men’s clothing

    Ships to: the US

    2. Outerknown

    Sustainability: Fair labor, sustainable and natural materials, including organic cotton.

    Best for: Sustainable men’s clothing, men’s swimwear

    Ships to: the US & International

    Outerknown Earth Day brands

    3. Patagonia

    Patagonia Earth Day brands

    Sustainability: Certified B Corporation and 1% for the planet member. Patagonia creates high-quality, durable outdoor clothing and casual clothing in fair trade certified factories using recycled and natural materials.

    Best for: Outdoor clothing, swimwear, casual clothing, workwear

    Ships to: Worldwide

    4. Colorful Standard

    Sustainability: Ethical production, sustainable materials, including GOTS certified organic cotton, recycled materials, and biodegradable sunglasses

    Best for: Shirts, sweaters, hoodies, sunglasses

    Ships to: Worldwide

    Colorful Standard Earth Day clothing brands

    5. Frank and Oak

    Frank and Oak sustainable clothing brand

    Sustainability: Certified B Corporation. Canadian sustainable clothing brand creating ethical and eco-friendly clothing from recycled materials and natural fibers.

    Best for: Jackets, clothing, accessories

    Ships to: Canada & the US

    6. Tentree

    Sustainability: Ten tree plants ten trees for every item purchased. Clothing is created with sustainable and natural materials.

    Best for: Casual clothing, outdoor wear

    Ships to: the US & International

    Tentree t shirt

    7. KOTN

    KOTN

    Sustainability: Certified B Corporation, creating basics from natural fibers using ethical production

    Best for: Premium cotton basics

    Ships to: Worldwide

    8. The Phoenix Brand

    Sustainability: The Phoenix Brand creates fashion-forward garments that are plant-based, upcycled, and toxin-free.

    Best for: Men’s clothing, t-shirts

    Ships to: the US & Canada

    The Phoenix brand New brands to discover this earth day

    9. Organic Basics

    Organic Basics t shirt

    Sustainability: Certified B Corp and 1% for the planet company, creating premium organic cotton clothing made ethically.

    Best for: Premium organic cotton basics including shirts, t-shirts, sweaters

    Ships to: Worldwide

    11 Sustainable Shoe Brands To Discover

    Around 20 billion pairs of shoes are sold every year, with less than 5% of shoes being recycled. Most footwear is being disposed of in landfills. Shoes can take thousands of years to degrade due to materials, including plastics and metals.

    By switching to shoes made with sustainable materials such as natural fibers and recycled materials, we can help to reduce our carbon footprint and tread lighter.

    Check out our favorite shoe brands below, or discover more great brands by taking a look at our popular footwear recommendations, including running shoes, sneakers, and shoes made from recycled plastic.

    1. Allbirds

    Allbirds sustainable running shoes

    Sustainability: Certified B corporation creating sustainable shoes from recycled and natural materials, including a carbon-negative EVA Sole created from sugarcane.

    Best for: Running shoes, sneakers, slip-on

    Ships to: Worldwide

    2. Tropicfeel

    Sustainability: Eco-friendly travel shoes created from recycled materials

    Best for: Travel shoes, sneakers

    Ships to: Worldwide

    Tropicfeel shoes made from recycled plastic

    3.

    Cariuma sustainable shoes

    Sustainability: Certified B Corporation. Every pair = 2 Trees planted. Ethical shoes created with recycled and responsibly sourced sustainable materials, including organic cotton.

    Best for: Sustainable alternative to low profile shoes like Vans

    Ships to: Worldwide

    4. Baabuk

    Sustainability: Sustainable footwear brand using responsibly sourced wool to create its ethical shoes.

    Best for: Wool shoes and slippers

    Ships to: Worldwide

    Baabuk earth day shoes

    5. Native Shoes

    Native shoes Earth Day round up

    Sustainability: Recyclable shoes which are turned into children’s playgrounds

    Best for: Kids shoes, sandals

    Ships to: Worldwide

    6. On Running

    Sustainability: Sustainable running shoes created from recycled materials

    Best for: Running shoes, hiking boots

    Ships to: Worldwide

    On running earth day round up

    7. SUAVS

    SUAVS shoes made form recycled plastic earth day

    Sustainability: Travel shoes and sneakers created using recycled plastic bottles

    Best for: Sneakers, slip-on

    Ships to: the US

    8. Rothy’s

    Sustainability: Men’s and Women’s shoes made from recycled plastic bottles

    Best for: Ballerina flats, sneakers, loafers

    Ships to: Worldwide

    Rothy's shoes

    9. Etiko

    Etiko vegan shoes

    Sustainability: Vegan sneakers and hi-tops are made from natural and eco-friendly materials, including hemp and organic cotton.

    Best for: Shoes like Converse and Vans

    Ships to: Worldwide

    10. Beflamboyant

    Sustainability: Vegan sneakers made ethically from natural materials, including bamboo fibers

    Best for: Vegan shoes

    Ships to: Worldwide

    Beflamboyant vegan sneakers

    11. Earth Shoes

    Earth Shoes sustainable trainers

    Sustainability: Sustainable shoes and sandals made from eco-friendly materials, including hemp and organic cotton, and responsibly sourced leather

    Best for: Sandals, pumps, sneakers

    Ships to: Worldwide

    5 Sustainable Underwear Brands

    Below we’ve picked out our favorite top five sustainable underwear brands that create high-quality underwear from earth-friendly fabrics.

    There are lots of other great eco-friendly brands out there. Discover them in our guides on organic cotton underwear, sustainable lingerie, and sustainable bras.

    1. Heist

    Heist eco lace lingerie

    Sustainability: Eco-friendly underwear made from deadstock and recycled fabrics

    Best for: Lace underwear

    Ships to: Worldwide

    2. Pact

    Sustainability: Organic cotton underwear made ethically

    Best for: Affordable organic cotton underwear

    Ships to: Worldwide

    Pact underwear

    3

    Parade earth day brands

    Sustainability: Sustainable underwear created from eco-friendly fabrics and recycled materials

    Best for: Soft bras, affordable underwear

    Ships to: Worldwide

    4. Boody

    Sustainability: Organic underwear created from renewable, organic bamboo

    Best for: Ultra-soft and breathable bras and panties

    Ships to: Worldwide

    Boody Bamboo Underwear

    5. Woron

    Woron bras earth day brands

    Sustainability: A female-founded brand creates soft, sustainable underwear designed with eco-friendly fabrics, including organic cotton and Tencel, always made without toxic chemicals or toxic dyes.

    Best for: Soft cup bras and pants

    Ships to: Worldwide

    5 Sustainable Activewear Brands To Discover

    Below we’ve chosen five sustainable activewear brands that create workout clothes from sustainable materials.
    If you want to discover more activewear brands, look at our tailored guides on running shoes, running clothes, and yoga clothes.

    1. Wolven

    Wolven sustainable activewear earth day brands

    Sustainability: Female-founded brand creating soft and lightweight, eco-friendly activewear made from recycled plastic bottles

    Best for: Yoga leggings, colorful and vibrant workout clothes

    Ships to: Worldwide

    2

    Sustainability: Sustainable workout clothes made from recycled plastic

    Best for: Compression leggings, sports bras, size-inclusive activewear

    Ships to: Worldwide

    Girlfriend Collective earth day brands

    3. Summersalt

    Sustainability: Use of recycled fabrics and ethical production to create vibrant activewear sets

    Best for: Vibrant activewear sets

    Ships to: Worldwide

    Summersalt Earth Day brands

    4. DAY/WON

    Day Won Earth day round up

    Sustainability: Made in the USA using recycled fabrics

    Best for: size-inclusive activewear

    Ships to: the US

    Wrapping Up: Earth Day Brands To Support

    We hope you’ve discovered a bunch of new sustainable brands to support this Earth Day.

    Remember, buying less and wearing your existing clothes is the best thing you can do to prevent overconsumption. However, when you shop for new clothes, make sure you’re supporting brands using ethical production and sustainable materials that don’t damage the earth’s resources.

    Bethany
    Bethany

    Bethany Worthington BSc (Hons) (she/her) is the Sustainable Fashion Editor and Co-founder of Ecothes. She has a passion for the environment, and a long love of all things clothing, and combines those two interests with Ecothes. In her free time she loves dancing, hiking in the countryside, and laughing with friends.

    Articles: 207

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