I Vetted Thousands of Sustainable Fashion Brands to Find 17 Expert-Approved Labels

It's a common experience: In an effort to become a more eco-conscious consumer, you begin researching the best sustainable fashion brands. You find a clothing company that uses all the buzzwords you know are important—clean, circular, transparent—and purchase an item that catches your eye. However, when it arrives a few days later, it's itchy and rough against your skin. You check the tag and find a confusing list of polyester blends, none of which align with the organic, earth-friendly vision initially promised. It dawns on you that the brand likely isn't as sustainable as it claimed. You've been greenwashed.

Marina Testino, a sustainability strategist who collaborates with brands like Stella McCartney and Gucci, as well as organizations such as Greenpeace, created a comprehensive checklist to help individuals avoid the faux-eco pitfall.

Testino refers to it as the "Five Pillars of Conscious Fashion." To evaluate a brand's environmental impact, consider the following: sustainably sourced materials, including "recycled, organic, upcycled, or biodegradable" options; a responsible production process (the number of collections the brand releases annually and whether items are made to order); transparency regarding "where fabrics come from and who produced the garments "; management of carbon emissions (zero-waste practices, repurposing textiles, etc.); and the brand's social responsibility, which encompasses fair labor practices and community engagement.

A label doesn't need to tick every single box on Testino's list to qualify as sustainable. "If a brand is making an effort with at least two of the five pillars, that signals a genuine commitment to conscious values and solutions," she says. It's more important that the brand is sincere with its mission and has proof to support its efforts. "No brand is perfect, but if you see a claim without any evidence, that's a red flag," says Alyssa Hardy, journalist and author of* Worn Out: How Our Clothes Cover Up Fashion's Sins*. "Do they provide supplier information or certifications? It can't hurt to ask before you buy," the writer says.

More than anything, both Hardy and Testino emphasize that sustainability is more of a mindset than a consumption practice. "It's less about the physical items you purchase than about the personal value you assign to each piece," explains Testino. You can invest in a $600 pair of pants made from organic, locally grown hemp, but if they sit in your closet with their tags still on, it wasn't a worthwhile purchase. "Only buying what you truly love or need is key," says Testino.

To help you build a more eco-conscious closet, ahead is a comprehensive roundup of the best sustainable fashion brands, researched by Marie Claire and endorsed by Testino, Hardy, and Erin Allweiss, co-founder of No. 29 Communications, an impact-oriented, purpose-driven public relations firm. Below, discover and shop 17 labels that are truly green.

A Comprehensive Guide to the Best Sustainable Brands

Baserange

"For true basics, like elevated T-shirts and layering pieces, I'm a Baserange girl," Allweiss shares about the brand based in Denmark and France. She notes that the label offers wardrobe essentials with a quirky, playful slant—cutout tank tops, silky slip dresses, and paper bag-waist linen pants. It provides detailed information on each of the materials used, along with a map pinpointing the origin of each fiber and a written overview of Baserange's supply chain. Future initiatives include installing solar panels on the roof of their headquarters and integrating more organic hemp into upcoming collections.

Maria McManus

In 2020, the Dublin-born designer Maria McManus launched her eponymous line as a streamlined, traceable collection of sharp suiting, cloud-soft knitwear, and other wardrobe essentials that act as modern heirlooms. All materials are sourced from England and Japan, utilizing high-quality natural, recycled, and biodegradable fibers. Both Alweiss and Testino praise Maria McManus, the No. 29 co-founder, who particularly loves the label's front-pleat trousers, which she pairs with a sturdy button-down shirt.

Veja

Allweiss and Hardy both recommend the French sneaker brand Veja, which launched in 2004 with the mission of reinventing sneakers by merging social responsibility with design. This sustainable shoe brand produces sneakers from ecological materials in high-standard factories in Brazil and Portugal, including organic and agroecological cotton, raw Amazonian rubber sourced from indigenous cooperatives, and mesh made from recycled polyester. As for specific pairs, Allweiss references its recently reissued Volley silhouette, which she bought in black and "wears every day."

BITE Studios

An acronym for “By Independent Thinkers for Environmental Progress,” BITE Studios was launched in Stockholm by four co-founders who dreamed of minimalistic, sustainable clothing made from certified organic fabrics. The brand offers 20 set styles—including breathable maxi dresses and organic cotton cropped trousers—that are updated seasonally. BITE Studio's limited design model champions clothing that "[transcends] generations and trends, with organic fabrics that feel luxurious and are less damaging to our earth," according to its site.

Maggie Marilyn

New Zealand native Maggie Marilyn combines elegantly youthful designs with conscious practices while adhering to its three core values: people, the planet, and prosperity. The brand has a transparent value chain, tracking its manufacturers, textile sources, and suppliers, was certified Carbon Zero in 2020, and follows a direct-to-consumer model. "When you let go of the grow more, buy more, discard more cycle, and find comfort in buy as you need, repair what you can, and repurpose what you can't - that's when you'll find a home at Maggie Marilyn," notes the brand.

Lauren Manoogian

Brooklyn-based designer Lauren Manoogian offers "subtle essentialism" through minimalistic pieces that incorporate natural textural narratives. The designer utilizes naturally derived materials and ethical handmade production practices. Each piece is hand-loomed and crafted by artisans in Peru, including warm alpaca knitwear, roomy trousers, sleek trench coats, and quirky woven bucket hats.

Hope for Flowers

Hope for Flowers was founded on the belief that when one knows better, they do better. Designer Tracy Reese utilizes organic cotton, linens, Cupro (a cellulose-based rayon), and Tencel Lyocell (regenerated cellulosic fibers). To offset its carbon emissions, the brand donates products to the organic waste organization Detroit Dirt. Hope for Flowers provides free Art Enrichment Programs to adults and children to promote engagement in art and sustainability. Tracy Reese expresses, “It's about slowing things down, not over-producing, delivering products closer to need and not having to be present in every category of fashion.”

Stella McCartney

"Twenty years ago, strictly using cruelty-free alternative materials made me something of an 'eco-weirdo,'" McCarney previously told Marie Claire . Since 2001, British designer Stella McCartney has committed her fashion collections to responsible practices, adapting her "progressive luxury brand" to the ever-changing landscape of sustainable fashion. In 2008, McCartney began using organic cotton; in 2012, the company joined the Ethical Trading Initiative; in 2016, it created a 100-percent sustainable viscose; and in 2024, it employs innovative textiles like regenerative wools and plant-based, plastic-free animal fur and feather alternatives.

Lemlem

All Lemlem pieces are ethically made in Africa, including artisanal workshops in Ethiopia and small factories in Kenya and Morocco. Each item is handcrafted to preserve traditional African weaving while creating job opportunities for local artisans. The brand sources its cotton locally in Africa, with 50 percent being organic. Any excess fabric is repurposed into accessories or donated to sewing schools.

Carolina K

Carolina Kleinman's brand, Carolina K, supports around 300 artisans in remote regions of Latin America. By employing them, the brand helps preserve ancestral techniques that have been passed down for generations. Each collection emphasizes natural and recycled fibers, including organic cotton, Cupro, FSC-certified viscose, linen, recycled polyester, and Econyl. The brand's handmade styles are crafted by female artisans in rural Mexico and Peru, taking between 10 and 50 days to complete.

Cordera

Founded in 2008, Cordera offers timeless, minimalist designs that are ethically crafted in Galicia, Spain. The garments are made from natural and recycled synthetic fibers as well as upcycled yarns, with all knitwear produced on Japanese knitting machines and hand-finished by skilled artisans. Moreover, Cordera does not adhere to traditional fashion seasons, encouraging customers to wear its pieces year-round and keep them for future seasons.

Chloé

Certified B Corporation Chloé is dedicated to transforming its operations to be more socially and environmentally sustainable, while enhancing transparency and accountability. Looking ahead, the brand's goals for 2025 include utilizing 90 percent lower-impact materials in its ready-to-wear collections, reducing carbon emissions by 25 percent for each individual product, and increasing its fair-trade sourcing by 30 percent.

Apiece Apart

Apiece Apart creates pieces that adapt to the versatility of life–97 percent of its materials are eco-friendly, natural, or certified. The brand also considers the distance to its factories in India, China, Peru, Turkey, and the US to reduce carbon emissions. Through its charitable arm, the Apiece Apart Future Forward Fund, the label donates one percent of e-commerce sales to organizations striving to make the world safer.

Kotn

Certified B Corporation KOTN boasts the fourth-highest B Impact score among all apparel brands in North America. The brand emphasizes biodegradable and natural fabrics, using only OEKO-TEX non-toxic certified dyes for coloring its garments. KOTN collaborates directly with farming communities in Egypt and partners with a local NGO to reinvest its proceeds into the education system. To date, KOTN has helped build seven schools and fund ten others.

Esse The Label

Esse The Label aims to inspire consumers to consider the purpose and life cycle of garments. The brand releases seasonless styles in small capsule collections that include only those made from organic, renewable, and biodegradable fibers, such as GOTS-certified organic cotton, Tencel Lyocell, and OEKO-TEX-certified linen. When selecting a fabric, the brand takes into account water use, land use, eco-toxicity, human toxicity, and greenhouse gas emissions. All garments are produced ethically across three workshops in Vietnam and Indonesia, with each workshop housing no more than five employees.

Citizen

Citizen is a standout brand in the ever-evolving world of sustainable fashion and accessories. Their Eco-Drive was introduced in 1976 (nearly 50 years ago!) and leads in light-powered, sustainable technology for watch movements—it is powered by any light source and never needs a battery. Citizen has also partnered with the conservation organization 1 Percent for the Planet, pledging to donate one percent of its U.S. website sales to nonprofit organizations that support the environment.

One/Of

"My true obsession these days is One Of, which is one of the more special brands," says Allweiss. The New York-based label uses the highest-quality deadstock and excess fabrics from heritage brands and mills to create bespoke, limited-edition collections. While they are known for stunning dresses and suits, I've been living in the Ludisia sweater all winter long. It fits perfectly, and the quality difference is so clear," she notes.

Meet the Fashion Experts

Erin Allweiss

Erin has overseen media relations for some of the most recognized organizations, artists, brands and individuals. With a diverse background in art, sustainable design and public policy, her professional work is an extension of her personal interests.

Alyssa Hardy

Alyssa Hardy is an author and sustainable fashion journalist living in New York City. She was formerly the Fashion News Editor at Teen Vogue and the Senior News Editor at InStyle. Her debut non-fiction book “Worn Out: How Our Clothes Cover Up Fashion’s Sins,” details the stories of workers throughout the fashion industry.

Alyssa advocates for garment worker rights and has a deep passion for educating others about fashion’s environmental impact—ideas that are explored throughout her weekly newsletter, ‘This Stuff.’

Marina Testino

Marina Testino is the director of strategic partnerships at Earth Partner, sustainability editor at Beyond Noise, and founder of Point Off View: a mission-driven micro agency focused on digital communication and sustainable transformation.