Draw Attention With These 15 Eco-Friendly Formal Dress Brands

This guide will help you find a sustainable formal dress for any special occasion, including weddings, cocktail parties, galas, holiday get-togethers, and more.

With dresses that can be worn as prom gowns, cocktail dresses, bridesmaid dresses, evening gowns, and more, these businesses offer eco-friendly formal attire that is both fashionable and sustainable.

If you decide to make a purchase using any of the affiliate links in this guide, we will receive a small commission at no extra expense to you. This supports our ongoing efforts to provide you with these free resources! As usual, we only highlight companies that we adore (and we believe you will too!) and that adhere to CFC’s stringent sustainability standards.

Rare + Fair 

Rare + Fair has some seriously head-turning sustainable formal dresses that will make a statement at your next special occasion.

The label works closely with artisan co-operatives and small family businesses who use traditional, slow, and sustainable practices.

AGAATI

If you’re looking for consciously made dresses with some serious feminine flair, then AGAATI is the place to find them. All of this woman of color-founded brand’s pieces are handcrafted by artisans from nonprofits in India and Nepal who empower women. Crafted from natural and some deadstock fabrics, their styles are available on a made-to-order basis. And the brand offers a curated range of sustainable dresses for weddings and parties to help you find a sophisticated style for special occassions.

ourCommonplace

WOC-owned conscious fashion marketplace ourCommonplace curates an exceptional collection of ethical formal dresses.

Find statement pieces made out of upcycled materials from LAHIVE, sleek frocks from zero waste fashion brand Bastet Noir, ethically handmade feminine garments from Edward Mongzar, and dreamy timeless dresses made in small batches from Onrīck.

LOUD BODIES

Believing that “real style has no size” and that everybody deserves to wear colorful and beautiful clothing, conscious fashion label LOUD BODIES has bold flowy dresses in sizes XXS-10XL.

Additionally, the brand offers custom sizing free of charge. Each piece is ethically-made from OEKO-TEX 100 certified natural fabrics such as linen and non-toxic dyes.

The RealReal

Luxury consignment store The RealReal is an incredible mecca for all things pre-loved designer goods. You can filter dresses by categories like Evening, Gown, and Cocktail to find what you need for your event(s), plus there are also a number of suits + separates options on their site as well as heels and other formal accessories.

ByRotation (UK + US)

If you just need a sustainable formal dress for one event, rental can be a great option! One really cool app to check out is By Rotation, which is a WOC-founded peer-to-peer social fashion rental marketplace. As part of the company’s commitment to sustainability, By Rotation utilizes eco-friendly cleaning and enlists a repair service called Clothes Doctor to encourage users to mend + restore items.

Nuuly (US)

Nuuly is a rental fashion app based in the US that operates as a subscription service. So you pay a monthly fee to rent a select number of styles you’d like each month.

So, this can be a good option if you’re going to multiple events per month, but may not work if you just need a one-off formal dress.

HURR (UK)

One final rental platform for this list is HURR. This UK-based company lets you search by category, dress length, fit, style, size, color, price point, and even brand to help you find exactly what you need for your upcoming event.

Hope for Flowers

Guided by three pillars: planetary health, people, and equity in profit, Hope for Flowers is dedicated to conscious business practices through and through. The Black- and woman-owned brand sources thoughtful materials like organic linen and Tencel, and sources from safe factories paying living wages.

Made Trade

Sustainable fashion and lifestyle retailer Made Trade has plenty of stunning sustainable formal wear for a variety of occasions. Find everything from sustainable bridesmaid dresses made from Tencel and organic cotton to fair trade formal dresses handcrafted by artisans from modal. Made Trade is also a 1% For The Planet Member and Carbon Neutral-Certified Business.

Whimsy + Row

LA-based label Whimsy + Row creates effortlessly cool clothing with the earth in mind. The brand produces locally in small batches using low impact fabrics like Tencel, cupro, linen, deadstock and upcycled fabric. Whimsy + Row has a beautiful selection of sustainable bridesmaid dresses!

Amour Vert

San Francisco-based eco label Amour Vert creates feminine dresses, jumpsuits, and other apparel made from conscious fabrics like beechwood modal, cupro (plant-based silk made from cotton waste), Tencel, and organic cotton. The majority of their production takes place locally in the Bay Area as well.

Vestiaire Collective

Another luxury resale online store worth checking out is Vestiaire Collective. They have a wide swatch of dresses, suits, and other formal wear from mid-tier brands and designer labels, plus they sell vintage options. You can also find pre-loved luxury accessories like handbags, shoes, and more.

Christy Dawn

Cottagecore chic brand Christy Dawn has the dreamiest dresses, great for summertime occasions. The brand’s pieces are either made from deadstock fabric or regenerative cotton grown with traditional holistic farming practices.

Eileen Fisher

Minimal and capsule wardrobe-ready brand Eileen Fisher has timeless pieces that can be worn to formal occasions and far beyond. The designer not only produces sustainably with eco fabrics and slow, ethical manufacturing practices but also has a take-back and resale program to extend the life of their garments further.