Weddings are all about celebrating love. Along with celebrating the happy couple, we can show our love for people and the planet by wearing sustainable wedding guest dresses that don’t just look good but support a more sustainable fashion industry too.

Why Choose An Ethically Made Wedding Guest Dress?

The fashion industry as a whole has a lot to answer for. Carbon emissions, water pollution, and clothing waste piling up faster than a shotgun-wedding. Need specifics? Here are three reasons to choose sustainable attire for your next celebration:

  • The fashion and textiles sector is responsible for approximately 2 to 8% of global carbon emissions… oh and 9% of microplastic pollution!
  • Fast fashion contributes to a cycle of overproduction and waste, with the equivalent of one garbage truck of textiles being landfilled or burned every second.
  • Most mainstream garments are made in environments with poor labor rights, including forced labor, and terrible working conditions.

Enter: wedding guest dresses that consider ethics as well as aesthetics. For this list we looked for brands who prioritize sustainable (ideally natural) materials, ethical production and other green business initiatives like climate action. We’ve also included a few brands who offer dress styles that could be used for a range of different occasions so as to make the most of your purchase.

Additionally, our Brand Rating System now extends what we look for in brands (who opt in) to a much wider range of sustainability related criteria, like circularity, chemical management, biodiversity impact, and more. Look out for rated brands on the list below and find others here.

So, dance the night away in a thoughtfully-made dress that matches your wedding guest aesthetic, whether you’re drawn to linen sundress styles, a soft draping dress aesthetic, or sleek silhouettes for more formal venues. These dress outfit ideas prove that slow fashion can be fun and flattering.

Related Guide: Sustainable Wedding Dresses

We independently research all featured brands, and we ask them to confirm their claims. In many cases we personally review recommended products. This post contains affiliate links which means we may earn a commission if you buy something. We explain this further in our Terms of Use.

Ethical Dress Outfit Ideas We’d Wear to Any Reception

Passion Lilie’s fair trade range of dresses includes various cuts, prints, and colors. Many of their flattering styles are beautifully hand-printed with a block stamp (including our favorite wrap-style dress). Passion Lilie has been comprehensively rated by us on their sustainability credentials – find the full rating here.

MagicLinen helps us get ready for the summer wedding season with OEKO-TEX-certified linen dresses lovingly handmade in their small Lithuanian studio. We love their breezy designs and attention to detail, which makes their more formal styles our go-to dresses for special occasions. Magic Linen has been comprehensively rated by us on their sustainability credentials – find the full rating here.

Fair Labor Association member Reformation is reforming fashion by ensuring their stunning, ethical formal dresses are made by people who are paid a fair wage.

Index: Best Sustainable Wedding Guest Dresses

  1. Passion Lilie Jump to brand
  2. MagicLinen Jump to brand
  3. Linen Handmade Studio Jump to brand
  4. Whimsey + Row Jump to brand
  5. Reformation Jump to brand
  6. Mila.Vert Jump to brand
  7. Rent The Runway Jump to brand

Passion Lilie

Disrupting

Top 10% of brands
United States
Worldwide
$$$
Ethical Sourcing
Raw materials have been sourced ethically with people and planet in mind.
Handcrafted
Products have been made by hand, typically by an artisan or group of artisans.
Non-toxic
All products are made with ingredients or materials that are currently considered non-toxic
Organic
Products are made from organic materials.
Plastic-free
All products are entirely plastic-free
Small business
This brand is a small business run by less than 15 people
Sustainable Materials or Ingredients
Either all or most products are made with sustainable materials or ingredients.
Thoughtful packaging
Product packaging has been designed and created with the end of life outcome in mind and can be easily recycled or composted.
Traceable Supply Chain
Brand is able to fully trace their entire supply chain from end to end.
Vegan
This brand does not use any animal products or by-products in their products
Woman Owned
This brand is owned by a woman or a group of women.
Fair Trade
Fair Trade
The Fair Trade certification ensures that products are made according to rigorous social, environmental, and economic standards that protect workers and the planet. Overseen by organizations such as Fair Trade USA and Fairtrade International, it guarantees fair wages, safe working conditions, environmental sustainability, and community development funds, helping producers build more equitable and resilient supply chains.
GOTS
GOTS
The GOTS (Global Organic Textile Standard) certification is the world’s leading standard for organic fibers. It covers every step of production, from harvesting raw fibers to environmentally and socially responsible manufacturing, and prohibits toxic dyes, GMOs, and harmful chemicals. GOTS also enforces fair labor practices.

Bring some eco-passion to the special occasion with one of Passion Lille’s cute summer dresses, ideal for a summer wedding. A wrap-style dress makes for a versatile wardrobe essential, and Passion Lilie has an extensive collection of cuts, prints, and colors to choose from.

Their natural fiber wedding guest dressses are made from 100% GOTS-certified cotton. Only non-toxic dyes are used. They’re made in a Fair Trade certified factory in India with which Passion Lilie has a long term, close relationship.

Passion Lilie has been rated by Sustainable Jungle. Find the full rating here.

My Personal Review of Passion Lilie’s Coastal Organic Wrap Dress:

“The Coastal Organic Wrap Dress is my favorite of their two dresses I own. With an inner hole to thread one of the ties through before wrapping around, it’s super secure and comfortable, even when in motion. No need to worry about it coming untied, even on a windy Wyoming day where I live (which is most of them).”

Review by Amber McDaniel, SJ’s Head of Content

MagicLinen

Disrupting

Top 10% of brands
Lithuania, United States
Worldwide
$$$
Compostable
All or some products are compostable, either in an industrial facility or at home
Ethical Sourcing
Raw materials have been sourced ethically with people and planet in mind.
Handcrafted
Products have been made by hand, typically by an artisan or group of artisans.
Made To Order
Products can be made to order, thus limiting unnecessary production
Non-toxic
All products are made with ingredients or materials that are currently considered non-toxic
Plastic-free
All products are entirely plastic-free
Sustainable Materials or Ingredients
Either all or most products are made with sustainable materials or ingredients.
Thoughtful packaging
Product packaging has been designed and created with the end of life outcome in mind and can be easily recycled or composted.
Vegan
This brand does not use any animal products or by-products in their products
Woman Owned
This brand is owned by a woman or a group of women.
OEKO-TEX®
OEKO-TEX®
The OEKO-TEX® Standard 100 certification ensures that every component of a textile product (threads, buttons, zippers, and fabrics) has been independently tested for harmful substances. Managed by the International Association for Research and Testing in the Field of Textile and Leather Ecology, it guarantees products are safe for human health, meeting strict global limits for chemicals such as pesticides, heavy metals, formaldehyde, and PFAS.

Price Range: $100–$165

MagicLinen knows how to put the pixie dust into your special day.

Flowy gowns like the Long Linen Dress Boracay are perfect for their stunning fit and ties that can be strung at the front, back, or wrapped around. It usually comes in white, clay pink, teal blue, and black, but you can select from 17 custom colors to suit your wedding theme.

MagicLinen utilizes high-quality, OEKO-TEX-certified European-grown linen for all its products, whether they’re organic curtains, bedding, or evening gowns.

Each of MagicLinen’s garments is designed and handcrafted in a small family-run facility in Vilnius, Lithuania. A small supply chain and pre-shipping of products to nearby warehouses help minimize the environmental impact of transportation.

Most of the dresses are shipped in 100% compostable cornstarch and PBAT (bio-based polymer) packaging. Other items are delivered in handcrafted, reusable linen bags.

My Personal Review of MagicLinen’s Trench Linen Dress LISBON:

“Picture this: you’re at a summer garden party, sipping Pimms with your friends, and everyone’s swooning over how fabulous you look. That’s the vibe I get from this dress—it takes me right back to my Oxford days, sipping cocktails and soaking up the spring sunshine. Not only is it top-notch in quality with lots of amazing little details, but every time I wear it, it gives me a real confidence boost. Hence it’s now my go-to dress for more formal summer events.”

Review by Amber McDaniel, SJ’s Head of Content

Linen Handmade Studio

Linen Handmade Studio has not been rated.

Price Range: $90–$177

Let a linen dress from Linen Handmade Studio be your plus one. This women-owned Lithuanian brand turns its love of linen into beautiful beach-ready attire for your next holiday in the sun (or warmer months at home).

If you’re looking for a guest wrap dress for a wedding, this brand has several linen dress outfit ideas to choose from, made from 100% European linen that’s OEKO-TEX-certified.

Each garment is handmade in a Lithuanian studio by a small team of seamstresses.

This plus-size linen clothing brand offers sizes 2-18.

Whimsey + Row

Whimsey + Row has not been rated.

Price Range: $224–$391

Whimsey + Row is an ideal place to find wedding dresses, bridesmaid dresses, and guest dresses.

Their wedding guest dresses are made with either a 51% TENCEL™/49% Cupro blend or a 50% ECOVERA™ viscose/50% viscose LENZING™ blend. Both are made from sustainably-sourced certified wood, are biodegradable, and bear OEKO-TEX certification.

All garments are made in LA, a short distance from their office. They drop by the facility regularly to ensure fair labor practices.

Whimsey + Row are carbon-neutral. A small supply chain = fewer transport emissions, and the brand offsets its emissions via Carbonfund.org. Limited runs mean less waste and any scrap fabric is turned into accessories.

Reformation

Reformation has not been rated.

Price Range: $98–$748

Reformation offers the widest range of fashionable wedding guest dresses—and much more. From floaty floral-printed maxis to silky strappy numbers and cute one-shoulder midi wedding guest dresses, there’s an impressive line of styles, fabrics, and prints to choose from.

The majority of Reformation’s guest dresses are made from 100% silk or viscose, but you’ll also find a few made from linen, organically grown cotton (usually blended with a small amount of spandex), and TENCEL™ Lyocell.

In addition to its own LA factory which crafts the majority of their line, Reformation works with several manufacturing partners in the USA, China, Turkey, Pakistan, India, and Mexico.Their Tier 1 and Tier 2 suppliers are third-party audited to ensure fair and safe working conditions.

Reformation is Climate Neutral Certified. They’re also 100% water neutral, recycle 75% of their waste (and working to increase this), and use compostable and recycled LDPE packaging.

Reformation’s extended size collection runs 14–24. Regular sizing is 0–12.

Mila.Vert

Mila.Vert has not been rated.

Price Range: €260–€390

For wedding guest dresses that balance elegance with ethics, Mila.Vert delivers refined European slow fashion at its best.

Designed and ethically made in Slovenia, their timeless silhouettes—from softly draped wrap dresses to flowing midi cuts—are perfect for formal celebrations, garden receptions, or intimate ceremonies. With clean lines, neutral hues, and minimalist tailoring, they make a quiet statement while keeping comfort and sustainability front of mind.

Mila.Vert uses certified organic cotton, using natural non-toxic dyes. Some non-knitwear items also feature European linen, TENCEL™, or recycled wool, all sourced through trusted partners.

Every garment is locally made in Slovenia by long-term partners like Liniatex, Krona, eSPe sewing, and Jakopina. This close-knit production model allows for oversight, ethical labor conditions, and quality craftsmanship.

To minimize waste, every Mila.Vert piece is made-to-order (so order in advance!), helping avoid excess inventory and the environmental costs of overproduction.

Rent The Runway

Rent The Runway has not been rated.

Price Range: $149–$2,190 (buy) or $35–$325 (rent)

You’ll feel runway ready in a sustainable wedding guest dress from Rent the Runway.

And what’s more low-impact than a dress that supports the circular fashion economy via an online clothing and dress rental service and pre-loved purchasing?

Filter your search by formality, weather, color, occasion, designer, and more to find your perfect eco-fit for the event. With hundreds of designers to choose from, it’s also one of the best ways to find affordable dresses for a wedding. Rent one time or choose a subscription plan that suits.

Frequently Asked Questions (FAQ) About Sustainable Wedding Guest Dresses

Q1: What makes a wedding guest dress sustainable?
A: A sustainable wedding guest dress is made using eco-friendly fabrics and processes. This includes the use of organic, natural, semi-synthetic (made in a closed-loop system) or recycled fibers (less idea), ethical production methods, and a focus on reducing environmental impact through sustainable practices like water conservation and low-waste production.

Q2: Why should I opt for sustainable dresses for weddings?
A: Selecting a sustainable dress helps reduce your environmental footprint and supports brands that prioritize ethical labor practices. Sustainable dresses also often offer timeless styles that remain in vogue, contributing to a cute summer dresses aesthetic that’s both fashionable and responsible.

Q3: Do sustainable wedding guest dresses tend to be more expensive?
A: They can be, due to the ethical wages and eco-friendly materials involved. However, they’re often of higher quality and last longer, providing better value for money in the long run. And often they’re not more expensive… the markups on some clothing is ridiculous – especially when there are no sustainability initiatives in place. Related guide: Why Are Sustainable Products More Expensive?

Q4: How can I ensure my dress is ethically made?
A: Look for certifications like Fair Trade, GOTS, or relevant auditing bodies like BCSI (see our guide to sustainable fashion for more). And research the brand’s transparency around their supply chains and labor practices i.e. how much do they disclose about where the clothes are made, who makes them and how those people are treated?

Q5: Can I rent sustainable wedding guest dresses?
A: Yes, platforms like Rent The Runway offer rental services for dresses, allowing you to enjoy a stylish outfit without the commitment of purchase, supporting the circular fashion economy.

Q6: Are there sustainable options for plus-size dresses for guests?
A: Many sustainable brands now recognize the demand for inclusive sizing, offering wedding guest dresses in a variety of sizes, including plus-size options. We’ve included a few options on this list.

Q7: What styles should I look for in a sustainable wedding guest dress?
A: Opt for styles that suit the formality of the occasion and the season. This could include anything from elegant evening gowns to cute sundresses. Personally we’d opt for comfort too – weddings can be SO MUCH fun, especially when you’re free to move and dance the night away. And perhaps more importantly, we’d opt for styles that can be worn to other things by being styled up or down, for example, Mila Vert’s dresses could be styled for work, a wedding or a casual evening dinner.

Q8: How can I accessorize my wedding guest dress respectfully?
A: Pair your dress with sustainably made accessories, such as secondhand or recycled-metal jewelry, ethical heels, or a vintage handbag.

Joy McConnochie is one of Sustainable Jungle's Co-founders
Joy McConnochie

Joy has been a passionate advocate for the environment since she was a small child. She grew up in South Africa and has been lucky enough to be exposed to the wonders of nature not just in Africa but all over the world. She founded Sustainable Jungle (together with her husband Lyall) back in 2017 after becoming enraged by the devastating impact of palm oil. She then founded the Sustainable Jungle Podcast and together with Lyall interviewed remarkable people from all over the world who were finding ways to create positive impact. Outside of Sustainable Jungle, Joy has always worked in the corporate world, starting out as an auditor and later moving into management consulting. More recently she specialized in Climate Investing for the Asia Pacific region. Given her experience, her current passion is Brand Ratings. She is very much enjoying going deeper on what it really means to drive sustainability performance and true impact through business operations.