More Sustainable Fashion Brand Offers This May 2026

Harvest & Mill pieces are grown, milled, and sewn exclusively in the US, supporting American organic cotton farmers and local sewing communities. The brand makes basics for everyone, always ensuring they are not dyed or bleached, greatly reducing the use of water, energy, and dye materials. Even better, by cultivating different varieties of cotton, the brand is able to bolster biodiversity, which is essential for ensuring healthy ecosystems and keeping our planet resilient in the face of climate change.

Shop the range in sizes S-XL.

See the rating.

Shop Harvest & Mill.

Certified B Corp Kotn is based in Canada and works with local NGOs on the ground at the Nile Delta to provide every child in their farming communities with quality education, and to help close the gap of low literacy rates amongst communities. With every purchase, not only will you get a beautifully made garment, but you’ll also help fund school infrastructure, materials, and salaries for teachers.

Find Kotn in sizes XS-2XL.

See the rating.

Shop Kotn.

Dressarte Paris makes custom clothes using luxurious, lower impact materials that often come from surplus sources.

Its products are made-to-order, and you can choose from existing sizes or enter your own measurements.

See the rating.

Shop Dressarte Paris.

Canadian brand tentree plants ten trees for every item purchased to help regenerate ecosystems and provide planting jobs in communities around the world, and has already planted over 65 million trees. All tentree’s products are created with an Earth-first approach, meaning they’re made in fair, safe working conditions, and constructed using lower-impact and recycled materials.

tentree’s clothes are typically available from XS-XL.

See the rating.

Shop tentree.

POPLINEN is an LA brand that specialises in more sustainably made basics using plant-based materials.

Find items in sizes XS-L.

See the rating.

Shop POPLINEN.

SeamsFriendly creates beautiful tailored pieces for all body types. It focuses on function and utility in its designs and uses lower-impact materials like organic cotton and linen. What’s more, shoppers can customise the brand’s designs to their exact preferences—change the neck style, depth, sleeve length, garment length, fabric, and more on anything in its array of clothes.

The brand’s product sizing is customisable (for womenswear: bust size range 26″-70″, waist size range 19″-63″, including petite, regular, and tall heights; and for menswear: chest size 34″ to 76″ and above with free custom sizing) to ensure you always find the perfect fit.  There’s a kids range (bust: 18″-28″, waist: 19″-26″) available too.

See the rating.

Shop SeamsFriendly.

Passion Lilie creates more affordable, responsibly made fashion using traditional techniques to provide dignified employment to artisans in India.

Passion Lilie’s range in XS-2XL.

See the rating.

Shop Passion Lilie.

Shop Passion Lilieg @ Shop Like You Give a Damn.

SukkhaCitta is a certified B corp brand from Indonesia creating timeless modern heirlooms leveraging heritage crafts.

Find the range in sizes XS-L.

See the rating.

Shop SukkhaCitta.

Oobi is an Australian girl’s fashion, swimwear, homewares, and lifestyle brand. In addition to creating stylish clothes for children, the brand makes sure it uses low-impact non-toxic dyes throughout its range. It also uses no animal products and opts for sea freight to transport products to reduce its climate impact.

See the rating.

Shop Oobi.

Shop Oobi pre loved @ Retykle.

Another leader when it comes to responsible fashion, No Nasties makes simple and stylish clothing from Fairtrade organic cotton in India where it is actively working to grow the ethical consumer market.

Find styles in sizes 2XS-3XL.

See the rating.

Shop No Nasties.

Maren Jewellery creates more sustainable, honest, aesthetic and high quality jewelry.

See the rating.

Shop Maren Jewellery.

Vottera offers beautifully crafted and ethically produced apparel made from certified organic and Regenerative Organic Certified cotton.

See the rating.

Shop Vottera.

Founded by two women from the US and India and headquartered in Shanghai, Loop Swim is a brand on a mission to close the loop on waste and promote circular design. It transforms post-consumer plastic bottles into phenomenal REPREVE UP50+ sun protective swimwear for men, women, and kids. Its trendless, high-quality designs are developed to retain shape and colour swim after swim.

Find most items in sizes XS-XL.

See the rating.

Shop Loop Swim.