7 Sustainable Slip Dresses For Summer 2026

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Our editors have found and reviewed the best slip dresses made by sustainable brands — these are our top picks.

Tight-fitting clothes in 90-degree weather? No, thanks — we can feel the sweat pooling already.

We’re all about easy, breezy basics this summer, like slip dresses that can be quickly dressed up or down with a quick change of shoes, accessories, or layers. We’ve narrowed down our favorites to the seven brands below, designed with lightweight and breathable fabrics like linen and silk — which are responsibly sourced, to boot. Don’t just survive the heat this summer, thrive in style. 😎

Our criteria:

ETHICAL PRACTICES | These brands adhere to ethical and responsible labor practices, ensuring their employees receive fair wages and have safe working environments. We’ve also included brands that give back to their communities.
ECO-FRIENDLY/SUSTAINABLE | Each of these brands practices sustainability throughout their manufacturing process, including using all natural and organic materials, low-impact processes, and recycled/upcycled materials where possible.
INCLUSIVE PRICES + SIZING | We get that sustainable fashion can be expensive, which is why we’ve looked for affordable brands that value inclusive sizing for customers.

Don’t miss sustainable sandals or summer hats to complete your wardrobe.

1. Quince

Best For | Affordable silk
Sustainable Materials | Mulberry silk
Sizes | XS — 3X
Price | $90 — $100

Quince makes effortless basics at affordable price points, and the 100% Washable Silk Slip Dress is a must-have in our summer capsule wardrobe. There are more than 10 colors to pick from, from a beautiful forest green to pearlescent champagne — all made with washable mulberry silk with a satin sheen. This piece will hug your curves and hit just around the knee, making it an immediate go-to for date night. The silk meets OEKO-TEX and Bluesign standards and will last for years to come.

Customer Review | “Been looking for a quality slip dress that looks elegant and flattering. So many hang awkwardly/bunch in places you don’t want or are simply too expensive. This dress surpassed all expectations. Will be ordering in many more colors. If you’re on the fence – do it.” – Lauren B. (Read all reviews.)

A woman stands against a plain white background wearing a dark green satin slip dress with thin straps and black heels.

Woman with long dark hair stands against a plain light wall, wearing a sleeveless burgundy satin slip dress and a small necklace, looking directly at the camera with a neutral expression.

2. Boody

Best For | Vegan slip dresses
Sustainable Materials | Viscose bamboo, organic cotton
Sizes | XS — XL
Price | $70

Whether for sleep or summer style, Boody‘s V-Neck Slip Dress is each to reach for. It’s breathable and light, perfect for throwing on to run errands while looking your best self. Or, you can wear it as a layering or nighttime essential — available in two colors, black or navy, and designed to hit at the ankle. You can rest easy knowing this slip dress is ethically and sustainably produced by the B Corp using FSC-certified and OEKO-TEX certified bamboo.

Customer Review | “This dress is soft, versatile, stretchy, you can layer it up for winter or it’s perfect as it is for summer. It’s the best dress I have ever brought. Oh I also cut it shorter and it doesn’t fray!!!! Love it.” – Rachael (Read all reviews.)

Person in a navy blue sleeveless maxi dress with a side slit poses against a plain light background.

Woman standing and wearing a black sleeveless maxi dress with thin straps and side slit, paired with black sandals, against a plain light background.

3. Cuyana

Best For | Everyday wear
Sustainable Materials | Silk
Sizes | XS — XL
Price | $228

For a sexy and slinky slip dress, we recommend Cuyana. Made from Crepe de Chine silk in China, these pieces are gorgeously designed with a V-neck, silk band, and A-line shape. Just throw on a light jacket or add a sweater on top and your look is complete — whether for a romantic dinner or out on the town with friends! Cuyana’s pieces are Bluesign certified so they’re both sustainable and safely produced. Choose from the classic black option or the equally sultry and deeply rich mushroom color.

Customer Review | “In love with this dress. The hemline is so unique!” – Kristy S. (Read all reviews.)

A woman stands against a plain background, wearing a sleeveless, knee-length gray dress and open-toe sandals. She has long hair and her arms are relaxed at her sides.

A woman stands wearing a black sleeveless V-neck midi dress and black sandals against a plain white background.

4. Reformation

Best For | Special occasion wear
Sustainable Materials | Silk, viscose, Tencel, deadstock fabrics
Sizes | XS — XL
Price | $148 — $378

Since 2009, Reformation has been on a mission to make sustainable fashion accessible to everyone. The brand worked towards becoming Climate Positive in 2025, and by 2030, everything they make will be part of a circular fashion system. Reformation’s slip dresses are a perfect example of this commitment, offering a wide variety of unique styles that you won’t find anywhere else — perfect for special occasions! Plus, Reformation’s RefScale tracks the carbon and water footprint of every item, so you can see exactly how their pieces stack up in sustainability.

Woman with blonde hair wearing a light floral slip dress stands against a plain white wall, looking at the camera with a neutral expression.

A woman stands against a white background wearing a navy satin halter dress, black flat shoes, and holding a dark woven handbag.

5. Jungmaven

Best For | Linen feel slip dress
Sustainable Materials | Hemp and organic cotton
Sizes | XS — 2X
Price | $158

Jungmaven’s Sundance Slip Dress is the kind of easy staple piece you’ll reach for all summer long. Made from a lightweight blend of 45% hemp and 55% organic cotton, it has the airy feel of linen with a soft, broken-in texture that only gets better over time. The relaxed silhouette, delicate spaghetti straps, and hidden side pockets make it just as easy to dress up with sandals as it is to throw on over a swimsuit. Better yet, hemp is one of the most sustainable natural fibers, requiring less water and fewer pesticides than conventional crops while helping improve soil health, making this an easy choice for both your wardrobe and the planet.

Customer Review | “Incredible fabric, beach cover up, nightie, dress her up with heels and a fan/necklace/jacket or sneakers and a button down for river days. Worth every penny.” – Adrienne B. (Read all reviews.)

Woman with long dark hair wearing a white sleeveless dress and tan sandals stands facing away, glancing over her shoulder against a plain light background.

Person standing against a plain background, wearing a white dress with a light blue button-up shirt over it, one hand in dress pocket.

6. Buck Mason

Best For | Linen slip dress
Sustainable Materials | Linen
Sizes | XS — L
Price | $258

Buck Mason’s relaxed slip dress — made from lightweight plain weave slubby linen — offers an easy drape, hitting at the ankle. It features adjustable spaghetti straps, a v-neckline, a side-seam zipper, and comes in two versatile neutrals: dark navy and clove. With an open back and a lived-in feel, it’s perfect for casual yet elevated comfort. As a bonus, Buck Mason offers returns within 365 days of purchase, as long as the tag is still on.

Woman standing in a navy blue sleeveless maxi dress with thin straps and sandals, against a plain light background.

Woman standing sideways wearing a sleeveless, back-tied, brown maxi dress and black sandals against a plain beige background.

7. Whimsy + Row

Best For | Lightweight slips
Sustainable Materials | Cupro, organic cotton, Tencel, viscose, linen
Sizes | XS — XL
Price | $128 — $198

Whimsy + Row features stylish, sustainable slip dresses in a variety of styles, and each clothing item is produced locally on limited runs, ensuring unique pieces while cutting down on waste. Here you’ll find slip dresses made from eco-friendly fabrics like Tencel, organic cotton, and upcycled materials that are kind to the planet. Whimsy + Row is also committed to being carbon-neutral with a zero-waste mindset in place — from using fabric scraps for fun accessories to packing everything in recycled materials, you’ll support slow and sustainable fashion with every purchase.

Customer Review | “I have been wanting a beautiful black dress for some time now and this was exactly what I was looking for! I feel spectacular in it and it fits almost just right. I think the sides could be a little more fitting, but otherwise it fits just as the measurements say! The fabric feels so lovely and thicker than I expected. I love it! I can’t wait to wear it!” – Mandy (Read all reviews.)