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Whether you’re planning for an upcoming wedding, prom, gala, or any other special occasion, these ethical and sustainable formal dresses will be just the fit.

A lot of formalwear is made from irresponsibly sourced silk or polyester and is worn just once. It’s time to turn that around!

This guide will share sustainable formal dress options that have frocks you can rock to weddings, dances, galas, concerts, or any other event you have coming up.

How to Find Sustainable Formal Dresses

The most sustainable garment is the one already in your closet!

Do you have a special occasion dress or piece of formalwear that could fit the bill? While wearing an outfit only once to an event has unfortunately become the norm with social media, we can help counteract the culture by normalizing outfit repeating to special occassions again!

Another sustainable option is to make the most of what already exists by borrowing from a friend or family member or swapping with someone you know has a formal dress. This is something my friends and I did for high school dances like homecoming and prom. A friend’s Junior Prom dress became my Senior Prom dress the next year!

If there’s no one with your style and size, you can also expand your search of formalwear by browsing online resale platforms. Vestiaire Collective has a fabulous selection of dresses from designer brands for great prices, as does The RealReal. I’ve used The RealReal site to purchase dresses for weddings and other occassions.

If you just need a special occasion dress for one event, consider rental sites like Rent the Runway that offer affordable ways to get formalwear for a limited time.

If none of these options are available to you or you really feel ready to invest in an extra-special garment that you can wear for years to come, keep scrolling for our list of brands with sustainable and ethical formal dresses.

Brands With Sustainable Formalwear & Special Occasion Dresses

These brands have party-perfect minis, chic cocktail dresses, elegant evening gowns, and even pieces that would make for fabulous sustainable prom dresses!

Note that this guide contains partners and affiliate links. As always, all brands meet rigorous standards for sustainability and are brands we truly love — and that we think you’ll love too!

(You might also want to check out this guide for sustainable wedding dresses or this guide for more causal eco-friendly dresses.)

1. Rare & Fair

With elegant draping and feminine detailing, Rare & Fair’s dreamy dresses are certainly eye-catching — and the story behind each piece makes them all the more beautiful. Rare & Fair partners with artisans in Thailand, working closely with village co-operatives and small family businesses. The conscious UK-based brand sources sustainably-grown cotton from small-scale farmers following ancestral agricultural practices and small-scale silk sourced from communities in Thailand using traditional methods.

Conscious Qualities: Sustainable Traditional Fibers, Local Plant-Based Dyes, Craft Preservation, Ethical Production

Size Range: XS-L

Price Range: £££ / $$$

Browse Rare & Fair

2. Christy Dawn

Christy Dawn’s dresses are vintage-inspired but totally timeless. Their feminine frocks can be worn as house dresses or semi-formal wear to weddings, bridal showers, baptisms, or other not-quite black-tie occasions. Their dresses are either made from reclaimed fabrics ethically in Los Angeles or from regenerative organic cotton that is sourced in partnership with a small collective in India.

You’ll also find sustainable special occasion dresses from Christy Dawn made with regenerative silk, like the dress pictured here!

Conscious Qualities: Reclaimed or Regenerative Fabrics, Ethical Production

Size Range: XS-3XL (extended sizing collection)

Price Range: $$$

Browse Christy Dawn

3. Reformation

Reformation is a leader on sustainability among larger fashion brands, between their climate positive roadmap and better material sourcing (including recycled cotton, TENCEL Lyocell, and regenerative fabrics) to their supply chain transparency, limited production model, and circularity practices.

And the brand is making it easy to shop for sustainable special occasion dresses with their selection features like “Going Out Dresses” and “Wedding Guest Dresses”.

Conscious Qualities: Lower Impact Materials, Responsible Production Practices, Decarbonization Initiatives

Size Range: 0 – 12

Price Range: $$ – $$$

Browse Reformation

red floral sustainable formal dress from Reformation

4. Bastet Noir

Making each piece to order using upcycled materials, Bastet Noir is a zero-waste fashion label. The brand’s sustainable formal dresses and other elegant apparel — including silk jumpsuits — are made by women in North Macedonia. 100% of Bastet Noir’s profits are reinvested into the women’s businesses and their children’s education.

Conscious Qualities: Repurposed Materials, Made-to-Order, Gives Back

Size Range: 4-10 + custom sizes

Price Range: $

Browse Bastet Noir

Red silk jumpsuit - sustainable eveningwear

5. AMUR

Standing for A Mindful Use of Resources, AMUR uses earth-minded fabrics including hemp, linen, cupro (a silky fiber made from cotton linter, a byproduct of cotton production), modal, and recycled polyester. AMUR has some seriously stunning gowns that would make for great sustainable prom dresses or black tie-dress code outfits. AMUR could use more information on their labor standards and production practices though.

Conscious Qualities: Earth-Minded Fabrics

Size Range: XXS-XL

Price Range: $$$$

Browse AMUR

Green sustainable dress from Amur

6. Whimsy + Row

Sourcing lower impact fabrics like TENCEL + cupro vegan silk blend, certified organic cotton, and excess leftover fabric (“deadstock”), Whimsy + Row prioritizes sustainability throughout their collections.

The brand has several designs that would make for perfect sustainable bridesmaid dresses in their wedding collection! And even (vegan) silky dresses in a lovely cream for the bride.

Conscious Qualities: Eco-Minded Fabrics

Size Range: XS – 3XL

Price Range: $$ – $$$

orange sustainable bridesmaid dress formalwear from Whimsy and Row

7. BAACAL

Frustrated that brands often stop their size range at 12 despite the average American woman wearing size 16, BAACAL creates conscious clothing for the “true majority”: women who wear sizes 10-22. The plus-size sustainable fashion brand uses upcycled, vintage, and other existing materials for their collections.

Conscious Qualities: Upcycled Fabrics, Small-Batch Collections, Size-Inclusive

Size Range: 10-22 (unique sizing system of 1-4)

Price Range: $$$

Browse BAACAL

Red ethical formal dress from BAACAL

8. Symbology

Symbology partners with women artisans who handcraft beautiful, one-of-a-kind pieces. These artisans use traditional techniques such as block printing and hand-embroidery and are all paid living wages. The fair fashion label has striking dresses made with flattering silhouettes and many styles are offered up to size 3XL.

Conscious Qualities: Cultural Preservation, Fair Trade

Size Range: XS-3XL

Price Range: $$

Browse Symbology

Red sustainable dress from Symbology

9. Lahive

Bold and unique, Lahive’s stand-out dresses and other ethical formal wear will make a statement at cocktail hour or a night out downtown. The LA-based brand produces their luxe, textural pieces in small batches using upcycled materials in a factory run by solar power.

Conscious Qualities: Upcycled Fabrics, Renewable Energy, Local Production

Size Range: XS-XL

Price Range: $$$

Browse Lahive @ ourCommonplace

sustainable black formal dress from Lahive

10. LOUDBODIES

LOUDBODIES is on a mission to prove that ethically and sustainably-produced clothing can be accessible to anyone and style knows no size. In addition to offering sizes up to 10XL, the brand also offers customizations free of charge. The brand’s garments are made from low-impact fibers like linen, cupro, Ecovero Viscose responsibly by LOUNDBODIES founder Patricia and two employees.

Conscious Qualities: Eco Fabrics, Size-Inclusive, Carbon-Offset Shipping & Eco Packaging

Size Range: XXS-10XL

Price Range: $$

Browse Loud Bodies

model wearing pink flowy dress

11. Hope for Flowers

Hope for Flowers was founded on three guiding principles: the health of people, health of the planet, and equity in profit. The brand uses thoughtfully considered materials for their ethical formal dresses and other apparel like organic cotton, organic linen, and Tencel. Hope for Flowers also sources only from factories that pay living wages and ensure safe conditions.

Conscious Qualities: Black Woman-Owned, Organic & Eco Fabrics, Ethically-Made

Size Range: XS-L

Browse Hope for Flowers

White sustainable dress from Hope for Flowers

12. Amour Vert

Translated to “Love Green”, Amour Vert is an eco-friendly fashion label with several sustainability efforts, from using lower impact materials — like TENCEL™ modal, TENCEL™ Lyocell, and washable more responsible silk sourced from bluesign® factories — to having their own resale program called ReAmour.

Amour Vert has a collection called “Occasion Ready” with more elevated dresses to wear to weddings, baby and bridal showers, parties, concerts, or other special events.

Conscious Qualities: Organic & Eco Fibers, Non-Toxic Dyes, Circular Brand

Size Range: XS-XL

Price Range: $$

Browse Amour Vert

Mustard yellow sustainable formal dress

13. Cécile de Fleur

Elegant, sophisticated, and designed with sustainability in mind, Cécile de Fleur’s eco-friendly wedding dresses are designed to be worn again and again. [Check out our guide to sustainable wedding dresses here.]

The brand’s chic dresses are crafted in New York City using cruelty-free peace silk and intricate French leavers lace, and are colored with GOTS-certified dyes.

Conscious Qualities: Peace Silk, Eco Dyes & Packaging, Local Production, WOC-Owned

Size Range: 0 – 12

Price Range: $$$$

Browse Cécile de Fleur

14. Stella McCartney

Sustainable designer label Stella McCartney utilizes mindful materials like organic cotton, recycled fabrics, and cellulosic fibers for their ready-to-wear garments. The company also uses an Environmental Profit & Loss Statement, which is a “breakthrough decision-making tool” that helps Stella McCartney take a deeper look at their environmental impact, their progress, and the ways they can improve.

Conscious Qualities: Low-Impact Materials, Transparent Reporting, Social Sustainability

Size Range: 0-8

Price Range: $$$$

Browse Stella McCartney

Black short ethical formal dress from Stella McCartney

15. Valani

Valani’s plant-based clothing is perfect for warm-weather special occasions like spring weddings, summer soirées, and date nights. The vegan fashion brand uses mindful fabrics like hemp, Tencel, and banana viscose (a silky-feeling fiber made out of discarded banana tree stems). Each piece is made in Valani’s GOTS-certified factory that follows socially and environmentally responsible practices.

Conscious Qualities: WOC-Owned, Earth-Minded Fabrics, Non-Toxic Dyes, Eco Packaging

Size Range: 0-12

Price Range: $$$

Browse Valani

Pink ethical dress from Valani

You May Also Want to Check Out:

Eco-Friendly, Ethical, and Vegan Bags

Brands with Elegant Ethically-Made Flats

Sustainable Wedding Dresses for Your Special Day

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Green Living

8 Ways to Reduce Your Impact Today

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With a full-time job, an active social life, and perhaps a kid or a pup to raise, it can be tough to fit in a commitment to the environment — especially if it seems to require added cost or responsibility.
Take heart, though, because there are many simple ways to reduce your impact on the planet that actually help you save money. Once you’re up to speed with the basics like changing your incandescent light bulbs to energy-efficient LEDs and shopping with reusable bags, check out these equally easy ways to simplify your go-go life.
Avoid take-out waste by bringing your own to-go containers. Image courtesy of dotpolka

This article contains affiliate links. If you make a purchase through these links we will receive a small commission from the sale that helps fund our work.

1. Say ‘No’ to To-Go Waste

Even if you’re constantly on the run, it’s possible to reduce the amount of waste you generate by packing your own reusable mug, water bottle, food containers, and cutlery. The majority of restaurant to-go containers are still made from plastics that don’t recycle easily, so they’re used once and then thrown away. Each plastic cup, fork, straw, and clamshell box costs money, and you can be sure this cost is passed onto consumers — not to mention the environmental costs of all that plastic waste.

2. Water Well

Water is a precious resource, which is often a fact overlooked in developed countries where we can just turn on the tap and get clean, safe water. However, according to a 2025 WHO/UNICEF report, 2.1 billion people globally still lack access to safely managed drinking water, and the global potable water supply is under pressure from climate change and population growth. You can decrease your water consumption by following a few simple steps.

Flush and run sparingly: The average toilet uses between 1.6 and 5.5 gallons of water per flush. If you are already “letting it mellow,” save even more water by turning on the tap only when absolutely necessary. There’s no need for the water to run when brushing your teeth, washing your hands, or doing the dishes, for example.

Make sure it’s really dirty before washing: Clothing, dishes, and your body should undergo the wash and rinse cycle only when necessary. Use the same water glass all day, and wear those jeans more than once.

3. Hang It Out to Dry

Clothes dryers are among the most energy-intensive household appliances. Most of us are not willing to give up cold milk and crisp veggies from the fridge, but we can easily use the dryer less often, which can add up to significant savings of energy and money.

As an added bonus, letting your clothes air dry extends their usable lives (it is much less taxing on the stitching and fabric), it gives you a good excuse to get outside in nice weather, and line-dried laundry smells better too! If you live in a place where drying clothes outside right now would mean wearing duds that are cold and wet, consider using indoor drying racks to accomplish the same energy-free job.

4. Lights, Camera, Out!

Many electronic devices — such as phone and camera chargers, televisions, and computers — continue to draw energy even when in the “off” position. To avoid phantom power use, unplug such devices or plug everything into a power strip you can turn off when not in use. Encourage these same practices at your workplace. And no matter where you are, always turn off unnecessary lights.

5. Be a Wise Post-Consumer

In the digital age, many of us still rely on a steady stream of paper in our offices, kitchens, and bathrooms. Here are some easy suggestions for keeping more trees outside.

Print sparingly: When you do need to hold a document in your hand, be sure it has been printed and/or copied on both sides, and of course, be sure to recycle when done.

Buy the highest level of post-consumer, recycled paper: From toilet paper to notebooks, there is rarely a reason to use virgin paper. Look for the percentage on the packaging (such as products made with 100% recycled or 50% post-consumer materials), and also look for paper that is processed chlorine-free (PCF).

Class it up with cloth: Reusable napkins are not just for fancy dinner parties. They can be washed and reused indefinitely. The same goes for old T-shirts or towels, which can be repurposed as rags and used instead of disposable paper towels.

6. Resist the Urge to Splurge

A lack of excess cash can serve as a great excuse to reduce your consumption. Here are a few suggestions to help you consume less.

Take a consumption vacation: Consider taking the day or week off from making any new purchases, with the exception of necessities such as health products and food. By doing this, you’re not only saving money, but you’re also reducing the waste created throughout the life cycle of each new product, the packaging used, and the fuel consumed and produced in transporting products from the original resources to the manufacturer to your local store.

Buy nice, don’t buy twice: For necessities, make sure that you buy the highest quality, most energy-efficient, environmentally friendly model available within your budget. From appliances (Energy Star) to food (Local Harvest), there are low-impact alternatives for almost everything on the market.

Public transportation
Do you have to drive, or can you take public transportation? Image courtesy of L.A. Urban Soul

7. Bid Your Car Adieu

We are a society that loves our cars, but there are many alternatives to a day spent solo in your gas-guzzling ride. Backing out of your car rut can also provide new opportunities to socialize and get some exercise.

Get on the bus: Many cities and towns have excellent public transportation systems that include buses, subways, and trains. You’ll be surprised at the new friends you make or the added reading time you find when not behind the wheel.

Carpool with friends or co-workers: Rideshare services now make it easier than ever to find a match. Uber’s UberX Share allows passengers traveling in the same direction to share a ride and reduce costs while cutting emissions. Lyft and Waze discontinued their shared rides programs in 2023.

Get on a bike or walk: While riding your bike or walking might take a little longer to reach your destination, the fresh air, reduced carbon emissions, and the exercise more than make up for the extra minutes.

Phone it in: Explore telecommuting or teleconferencing options with your employer to significantly reduce your daily commute. According to Global Workplace Analytics, a typical employer can save an average of $11,000 per half-time remote worker per year, while employees save between $2,000 and $6,500 annually from reduced commuting and related costs. Telecommuting just a few days a week will save you and your employer money.

8. Ban Planned Obsolescence

The more we view potential waste as building blocks for new products, the lower our overall impact will be. Granted, some products (“gum” comes to mind) are decidedly single-use items, but with a little creativity, many others can easily be creatively repurposed.

Originally published on April 6, 2009, article was most recently updated in January 2026.

The post 8 Ways to Reduce Your Impact Today appeared first on Earth911.

https://earth911.com/inspire/8-ways-to-reduce-your-impact-today/

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Green Living

Sustainability In Your Ear: Peter Fusaro’s Wall Street Green Summit Explores Financing The Renewables Transition

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Global investment in the energy transition reached $2.2 trillion in 2025, up 5% from the previous year despite political headwinds intensified. Peter Fusaro has watched this market evolve from a niche curiosity into a systemic financial concern. As founder of the Wall Street Green Summit, he’s spent a quarter century connecting capital to climate solutions. This year’s summit, the 25th in its history, will take place on March 10 and 11 in New York. This critical conversation arrives at an historic inflection point: insurance companies are withdrawing from climate-vulnerable states, AI data centers are straining electrical grids, and the economics of clean energy have fundamentally shifted.

Peter Fusaro, Founder of the Wall Street Green Summit, is our guest on Sustainability In Your Ear.

The energy transition’s bottleneck isn’t capital, it’s infrastructure. The U.S. went from 110 investor-owned utilities in 1992 to just 40 today, and consolidation meant underinvestment in transmission and distribution. Data centers consumed 2% of U.S. energy demand in 2020; Peter sees that climbing to 10-12% by 2030. Blackouts and brownouts are inevitable, he says. Yet his message is pragmatic optimism: ignore Washington and watch the capital markets and blue states where climate policy is embedded in law. Many companies are “green hushing,” quietly pursuing sustainability without public positioning. The energy industry thinks in 40-year cycles, making the current political moment a blip. “I’ve spent 56 years now in sustainability, before it had a name,” he says. “What I’ve learned is change takes decades.”

Peter argues that Wall Street has genuinely internalized climate as systemic risk—not because of ideology, but because of opportunity. “Wall Street likes exchanges, likes to trade, likes volatility, and certainly likes uncertainty,” he explains. “What people don’t understand about Wall Street, it’s about the edge. What’s the arbitrage opportunity?” The reinsurance industry has stepped forward aggressively, funding carbon credits and sustainability projects. Peter’s recent Earth911 article, “Climate Risk Has Become a Defining Economic Issue,” explores these themes in depth.

However, he sees natural gas and renewables dominating the next 15 years, while geothermal is enjoying a genuine renaissance. His optimism rests on a demographic bet: “I have a tremendous valuation on young people. I’m 75. They’re inheriting this world, and they get the sustainability message globally.” The summit attendees includes no government officials and no academics, just people in the trenches building and financing solutions.

You can learn more at TheWallStreetGreenSummit.com. Earth911 is a media sponsor for the event.

The post Sustainability In Your Ear: Peter Fusaro’s Wall Street Green Summit Explores Financing The Renewables Transition appeared first on Earth911.

https://earth911.com/podcast/sustainability-in-your-ear-peter-fusaros-wall-street-green-summit-explores-financing-the-renewables-transition/

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Green Living

Earth911 Inspiration: Nothing Is Perfect and Everything Is Perfect

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Sustainability is a series of experiments. No one is perfect and too many people don’t try to help the Earth because they think they won’t make a difference. Author Alice Waters reminds us that every tree is beautiful and we can be, too, if we forget perfection and focus on living well: “In nature, nothing is perfect and everything is still perfect. Trees can be contorted, bent in weird ways, and they’re still beautiful.”

Earth911 inspirations. Post them, share your desire to help people think of the planet first, every day. Click the poster to get a larger image.

"In nature, nothing is perfect and everything is perfect ..." --Alice Walker

This poster was originally published on November 29, 2019.

The post Earth911 Inspiration: Nothing Is Perfect and Everything Is Perfect appeared first on Earth911.

https://earth911.com/living-well-being/earth911-inspiration-nothing-is-perfect-and-everything-is-perfect/

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