04 Sep

13 Best Sustainable Party Dresses

We’ve all been there before: you’ve been invited to a cocktail party, a night out clubbing, a dinner party, a beach party, an after-party, an office party… in short, a party. So you stand in front of your wardrobe for an hour, trying to figure out what to wear. You ask around, you ask your friends, you look for a dress code, you try to get a feel for the vibe at the venue. You want to look good and feel good but most importantly, you want to do good. The days of buying a $10 fast fashion dress just to go clubbing are over and you’ve decided to step up your game. Why not rock up in one of these sustainable party dresses, turning heads and starting conversations all at the same time?

We’ve rounded up 13 beautiful sustainable party dresses so you can dance the night away in ethical style. These brands have all been rated ‘Good’ or ‘Great’ by our amazing ratings team, following our new and improved methodology. So, keep reading to discover our selection of ethical party dresses: short sleeves, long sleeves, ruffled, slip, short, long, black, colourful, fun, formal, sexy, classy, beachy, or cool—whatever you’re looking for, we’ve got you covered.

Mara Hoffman

Rated: Good
sustainable black slip party dress by Mara Hoffman

Verda Dress – Ships internationally from the US

Slip dresses are the most versatile of wardrobe stables. This simple yet elegant one features a cross back, a deep V neckline, classic spaghetti straps, and is made from TENCEL in the USA. Mara Hoffman focuses on mindful and conscious practices and also has a gorgeous extended sizes collection, so you can be sure to find a new wardrobe addition no matter the bod you rock! This sustainable slip dress can be dressed up or down, making it perfect for any kind of party.

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Shop Mara Hoffman @ Farfetch.

Shop Mara Hoffman @ Reve en Vert.

Shop Mara Hoffman Pre-Owned @ Vestiaire Collective.

Shop Mara Hoffman.


Rated: Good
flowy baby pink sustainable party dress by Spell brand

Mira Bustier Rara Dress – Ships internationally from Australia

Spell is a modern-bohemian fashion brand inspired by far-off places, vintage treasures, and childhood memories. If you’re looking for an effortlessly sophisticated dress for your next garden party or even after-party, the Mira Dress is for you. You can wear it with some simple heels and ethical jewellery, or with sustainable sneakers for a more relaxed and fun look you can easily dance in.

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Shop Spell.


Rated: Good

One Shoulder Fit and Flare Mini Dress – Ships internationally from Sweden

nu-in is a European brand that features activewear, loungewear, and underwear collections, as well as trend-led men's and women's ranges. It prioritises the planet by using a high proportion of eco-friendly materials, and reuses offcuts to minimise textile waste. The brand is inclusively sized, and features an extended sizing range up to 6XL!

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Shop nu-in.

Whimsy + Row

Rated: Good
ruffle sleeve white sustainable party dress by Whimsy + Row

Olivia Dress – Ships internationally from the US


Person wearing dark blue sustainable oversized denim jacket by Whimsy + Row.

Whimsy + Row – Outerwear

Easy, flirty, and elegant jackets and coats ethically made for every modern and creative woman. Green Friday Sale! Up to 75% off selected jackets. (Ends: 29 NOV)

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Person wearing blood orange flared pants and bandana top by Whimsy + Row.

Whimsy + Row – Bottoms

From jeans to flowy loungewear-inspired trousers, skirts of all lengths to bike shorts: what more could you ask for? Green Friday Sale! Up to 75% off selected bottoms. (Ends: 29 NOV)

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Person wearing grey knitted dress ethically made by Whimsy + Row.

Whimsy + Row – Dresses

Hello, effortless chic! Made out of the best eco-friendly fabrics, these dresses will become your go-to. Green Friday Sale! Up to 75% off selected dresses. (Ends: 29 NOV)

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Person wearing brown and white printed sustainable blouse by Whimsy + Row.

Whimsy + Row – Tops

Like finding a vintage gem, Whimsy + Row tops use deadstock fabric to create unique looks you will treasure. Green Friday Sale! Up to 75% off selected tops. (Ends: 29 NOV)

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Whimsy + Row is an eco-conscious lifestyle brand born out of a love for quality goods and sustainable practices. Since 2014, its mission has been to provide ease and elegance for the modern, sustainable woman. By limiting each garment to short runs, Whimsy + Row utilises deadstock fabric, reduces packaging waste, and takes care of precious water resources. This sustainable puff-sleeved dress is great for this time of year, when seasons are changing and the weather is a bit uncertain but you still want to party. Find most products in XS-XL.

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Shop Whimsy + Row.

Shop Whimsy + Row @ Earthkind.

Stella McCartney

Rated: Good
black ethical party dress with gold accent by Stella McCartney via FarFetch

Diana One-Shoulder Cocktail Dress – Ships internationally from the UK

Stand out from the party crowds with this one-shoulder dress, made in Italy. A member of the Ethical Trading Initiative and Sustainable Apparel Coalition, Stella McCartney has set some excellent environmental standards across the luxury fashion industry. Stella uses some eco-friendly materials, including recycled polyester and organic cotton, and has a strategy in place to reduce waste across its entire supply chain. It has also adopted the ETI Code of Conduct that includes a living wage definition!

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Shop Stella McCartney @ LVR Sustainable.

Shop Stella McCartney @ Labell-D.

Shop Stella McCartney Kids Pre-Owned @ Retykle.

Shop Stella McCartney Pre-Owned @ Vestiaire Collective.

Shop Stella McCartney.


Rated: Good
woman wearing black dress by tonle

Emily Dress – Ships internationally from Cambodia

tonlé provides environmentally-friendly women’s clothing with a zero-waste design process. To do so, the brand uses remnant fabrics from large manufacturers as well as recycled threads and reclaimed wood from local suppliers for its trims and accessories. Made from reclaimed jersey in tonlé’s unique zero waste process, this sustainable fashion dress is a staple for any minimalist capsule wardrobe. Chic and sophisticated, the Emily dress can be paired with heels or with an ethical blazer for your next office party.

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Shop tonlé.


Rated: Good
woman wearing black shiny short dress by bastet noir

Awinita Dress – Ships internationally

BASTET NOIR offers custom-made clothing manufactured by women in Macedonia, ensuring that every purchase contributes to the welfare and education of these women and their children. Find most items in sizes 36 to 42, or in custom sizing.

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Cloe Cassandro

Rated: Good
orange sustainable party dress by Cloe Cassandro

Slip Dress – Ships internationally from the UK

Slip dresses are so great for parties we needed to recommend a second one! This eye-catching sustainable slip dress is made from rayon and features a bias-cut. We suggest wearing a bright white (ethical) t-shirt underneath for a cool festival after-party vibe. You could also pair it with some nice chunky heels for your next night out at the club. Cloe Cassandro creates beachwear, consciously made by hand on the island of Bali, constantly championing craftsmanship and local artisanship.

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Shop Cloe Cassandro.


Rated: Great
woman wearing orange spotted fiesta dress by milo+nicki

The Fiesta Dress – Ships internationally from the US

milo+nicki makes cruelty-free, ethically-designed, eco-conscious womenswear with Indian & Zambian roots. It uses a high proportion of eco-friendly materials like GOTS certified cotton, and is a leading advocate for better labour rights! The name of this dress says it all: the Fiesta dress is THE sustainable party dress we’ve been dreaming of. Handwoven from banana fabric (yes, you read that right) and made in New York, this biodegradable dress is so versatile it can be worn day and night. Pair it with sandals for a beach party, with low heels for a family reunion, or with stilettos for a rooftop party and the night is yours.

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Shop milo+nicki.

Shop milo+nicki @ Made Trade.

Madia & Matilda

Rated: Good
elegant ethical strap dresses by Madia and Matilda

Emily Strap Dress – Ships internationally from the UK

This ethical party dresses list would not be complete with a sustainable little black dress. Madia & Matilda’s LBD features slim straps and a flattering style, which makes it great for any event or party. Madia & Matilda is sustainable fashion created and upcycled in Britain, offering curious, quirky, and effortless pieces. It has a limited production run to minimise textile waste, and its products are manufactured in-house by a small team.

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Shop Madia & Matilda.

TAMGA Designs

Rated: Great
silky sustainable navy party dress by TAMGA Designs

Marga Mini Dress – Ships internationally from Canada

TAMGA Designs is out to prove how colourful and exciting sustainable fashion can be, serving up gorgeous, flowy designs that will glide you into warmer weather with poise and grace. TAMGA offers a range of tops, skirts, dresses, and accessories made from 100% Micro TENCEL®. This gorgeous mini dress comes in three colourways, from this classic navy to a couple of beach party florals, you can’t go wrong! You can find the full range in sizes XS-2XL.

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Shop TAMGA Designs.


Rated: Good

Pre-Owned Party Dresses by Reformation – Ships internationally

LA-based Reformation creates killer clothes that don’t kill the environment. The brand also ensures that a large proportion of its suppliers pay a living wage. Go Reformation!

See the rating.

Shop Reformation Pre-Owned @ Vestiaire Collective.

Shop Reformation @ Farfetch.

Shop Reformation.

Faithfull the Brand (Pre-Owned)

Rated: It's A Start

Faithfull the Brand is an Indonesia-based collection of effortless pieces designed to be versatile and easy, made with the modern traveller in mind. The brand rates 'Good' on the labour and animal welfare fronts, but still needs to use eco-friendly materials and reduce textile waste. By buying Faithfull the Brand second hand you're helping keep clothes out of landfills.

See the rating.

Shop Faithfull the Brand Pre-Owned @ Vestiaire Collective.

Check out our other sustainable night out outfit inspos.

Another great sustainable option for event outfits like party dresses is to rent your outfit for the night! If you’re in Australia, GlamCorner is our go-to rental site with tons of gorgeous dresses to dance the night away in. For an international option, check out Rent The Runway

Editor's note

Feature image via Mara Hoffman, all other images via brands mentioned. Good On You publishes the world's most comprehensive ratings of fashion brands’ impact on people, the planet and animals. Use our Directory to search more than 3,000 brands. To support our work, we may earn a commission on sales made using our offer codes or affiliate links.

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