20 Best Affordable Sexy Casual Summer Dresses

The best sexy casual summer dresses are cute, short, stylish, versatile, and sustainable to enhance your style and grow your confidence with a clean conscience.

Many ethical clothing designers and brands create lightweight, cozy, summery, and breathable dresses from recycled or organic materials that protect people and the environment.

The most fashionable, flowy summer dresses will flatter your body with the right fit and enhance your best features to help you look and feel sexy for yourself, a date, or your partner.

Choose unique cuts and creative silhouettes that emphasize your favorite body parts. Focus on enhancing your waist and balancing your nice curves without being too revealing.

Check out our selection below for the cutest and cheapest sexy casual summer dresses to easily create everyday looks that flatter your figure in the warm season.

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1. LA Relaxed Effie Dress

Category: Basics, loungewear, sleepwear, accessories
For: Women
From: Los Angeles, California, United States
Values: Organic, inclusive, made in the USA
Prices: $30-$40

LA Relaxed is an ethical and sustainable women's clothing brand that offers super soft clothes ethically made in Los Angeles, USA. It makes a wide range of cute and comfy casual dresses for the summer.

LA Relaxed creates affordable, sustainable, inclusive clothing that offers comfort and quality. It helps you be comfortable with yourself, body and mind, and soul.

LA Relaxed makes choices that take less from our planet and avoid unnecessary damage to the Earth and pain to human beings making our clothes.

SHOP LA RELAXED

2. Outerknown Lulu Dress

Category: Basics, dresses, outerwear, swimwear, loungewear, bags, accessories
For: Women, men
From: Los Angeles, California, United States
Values: Organic, Fair Trade, recycled
Prices: $50-$180

Outerknown is a clothing label that creates cute, cheap, and eco-friendly clothing for women and men rooted in sustainability and transparency. It makes sexy casual summer dresses with the most planet-friendly fibers.

Outerknown keeps strict sustainability rules and aims to raise the standard for quality, sustainable design in the global fashion industry. It uses organic and recycled materials to reimagine and embrace circularity.

Accredited by the Fair Labor Association (FLA), the ethical fashion brand invests in the livelihoods of over 5K workers through Fair Trade USA. Three of its partners are Fair Trade Certified.

SHOP OUTERKNOWN

3. Reformation Juliette Dress

Category: Basics, dresses, denim, outerwear, swimwear, activewear, loungewear, underwear
For: Women
From: Los Angeles, California, United States
Values: Organic, recycled, made in the USA
Prices: $10-$250

Reformation makes affordable and sustainable clothing for women. It offers a varied collection of casual, attractive, and cute classics, including summer dresses for petite up to extended sizes.

The eco-friendly brand designs effortless silhouettes that celebrate the feminine figure with the most beautiful and sustainable fabrics possible. It pays attention to minimize its social and environmental impacts.

Reformation uses sustainable materials such as organic cotton, recycled cotton, linen, and Tencel lyocell. It makes some of its clothes with upcycled and recycled fabrics and regenerated nylon or deadstock fabrics.

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4. Valani Sokha Banana Midi Dress

Category: Basics, dresses, denim, loungewear, accessories
For: Women
From: San Leandro, California, United States
Values: Organic, recycled, zero waste, vegan, timeless
Prices: $200-$260

Valani is an ethical clothing brand that creates fashion inspired by sustainability, compassion, and the strength of women. It offers timeless, dreamy pieces that help you live beautifully with compassion and self-love.

Valani is a new sustainable and vegan fashion house that makes romantic, feminine, attractive summer dresses designed to be elegant, versatile, and timeless.

Valani is committed to sustainability and ethical production practices. It uses super soft and beautiful banana or hemp fabrics to design sexy pieces perfect for a casual date night.

SHOP VALANI

5. Vitamin A Nola Mini Dress

Category: Basics, dresses, swimwear, loungewear, accessories
For: Women
From: Garden Grove, California, United States
Values: Organic, recycled, give back, made in the USA
Prices: $80-$120

Vitamin A is a clothing label that produces sexy casual summer dresses in the USA. The sustainable fashion brand is all about feeling good, looking good, and doing good.

Vitamin A creates flowy, short, cute, attractive dresses designed to last while caring about fit and style details. Its pieces are flawless, comfortable, and dependable in all the best ways.

The clothing label uses sustainable high-performance fabrics with eco-conscious textiles like organic cotton, linen, recycled cotton, and lyocell. It also gives back a portion from every sale to organizations that protect our oceans.

SHOP VITAMIN A

6. Synergy Organic Clothing Foundation Dress

Category: Basics, dresses, activewear, outerwear, loungewear, knitwear, accessories
For: Women
From: Santa Cruz, California, United States
Values: Organic, Fair Trade, recycled, B Corp
Prices: $30-$50

Synergy Organic Clothing is a sustainable and ethical fashion brand that makes GOTS-certified organic clothing using only fair labor practices. It offers sexy casual summer dresses that hug the body.

Kate Fisher founded the company in 1993 to create eco-conscious garments inspired by the beautiful fabrics and textiles of South East Asia after a trip to Nepal.

Synergy is committed to creating clothing with a minimal environmental impact. It also empowers men and women through ethical employment practices.

SHOP SYNERGY ORGANIC CLOTHING

7. Tentree Pipa Dress

Category: Basics, dresses, loungewear, outerwear, bags, accessories
For: Women, men, children
From: Vancouver, Canada
Values: Organic, B Corp, recycled, give back
Prices: $30-$40

Tentree is an Earth-first fashion brand that makes affordable, attractive, stylish, cute summer dresses from organic fabrics like cotton and hemp.

The sustainable fashion brand is B Corp certified and partners with charitable organizations to plant trees and rehabilitate natural ecosystems.

Tentree aims to guide you on your journey and empower you to do your best for the environment. It already planted over 48 million trees and restored land in over eight countries.

SHOP TENTREE

8. Made Trade Fiesta Dress

Category: Basics, dresses, knitwear, sportswear, loungewear, outerwear, swimwear, underwear, sleepwear, bags, accessories, shoes
For: Women, men
From: Portland, Oregon, United States
Values: Organic, Fair Trade, recycled, vegan, BIPOC, made in the USA
Prices: $50-$170

Made Trade is a Fair Trade retailer sustainably and ethically creating goods for the modern wardrobe and home. It offers organic apparel, accessories, and footwear, including sexy casual summer dresses.

The company stocks stylish, cute, and affordable dresses, skirts, and other wardrobe essentials made with sustainable and natural materials.

Made Trade is committed to transparency and making a positive impact on the world. The well-curated online marketplace sells a great selection of ethical products made in the USA.

Made Trade adheres to sustainable and Fair Trade practices that support both artisans and the Earth's natural resources. It strives to make the world a more beautiful place through higher ethical standards.

SHOP MADE TRADE

9. Etsy Natural Linen Dress

Category: Clothing, bags, shoes, accessories, jewelry
For: Women, men, children
From: NYC, New York, United States
Values: Natural, vintage, independent sellers
Prices: $10-$50

Etsy is an e-commerce website focused on hand-made or vintage fashion items, homeware, and craft supplies. It offers a wide range of beautiful, ethical, and sexy summer dresses made from 100% pure linen.

Many independents sellers list comfy, eco-friendly, stylish, and cute dresses for the warmer months on Etsy. The marketplace is very active and widely recognized as the most trusted vintage store.

SHOP ETSY

10. NA-KD Wrap Mini Dress

Category: Basics, denim, outerwear, knitwear, underwear, swimwear, nightwear, accessories
For: Women
From: Gothenburg, Sweden
Values: Organic, recycled
Prices: $10-$20

NA-KD is a next-generation fashion marketplace, a mobile-based online shopping sanctuary for fashion addicts worldwide. It offers a sustainable collection of affordable, beautiful, attractive, casual summer dresses.

NA-KD sells many different worldwide clothing labels at various price points and designs a range of clothes, footwear, and accessories under its brand.

The NA-KD brand is one of the fastest-growing on social media. It regularly partners with influencers to launch new collections like Andrea Hedenstedt, Anika Teller, Astrid Olsen, Camille Botten, Dilara Avci, Pamela Reif, Kristin Sundberg, and more.

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11. Karen Kane Lace Dress

Category: Basics, dresses, outerwear, knitwear, loungewear, accessories
For: Women, children
From: Los Angeles, California, United States
Values: Organic, recycled, made in the USA
Prices: $40-$120

Karen Kane is an American fashion designer that creates cute, affordable, ultra-comfortable, and sustainable clothes in Los Angeles, USA.

Karen Kane believes ladies should always feel beautiful and comfortable. She offers sexy casual summer dresses made in the USA with the best fabrics from all over the world.

Karen Kane creates products with passion and integrity, guided by respect for people and the planet. Most of her collections are designed and manufactured in Los Angeles.

SHOP KAREN KANE

12. Toad&Co Rosalinda Dress

Category: Basics, dresses, loungewear, outerwear, accessories
For: Women, men
From: Santa Barbara, California, United States
Values: Organic, recycled, vegan
Prices: $50-$90

Toad&Co is an organic fashion brand making socially and environmentally committed clothes for women, including affordable, breathable, comfortable, sexy casual summer dresses.

Toad&Co aims to make a difference to clean up a dirty apparel industry, educate people on sustainable practices, and inspire folks to live their best lives.

The organic fashion brand believes in sustainability and spontaneity because every day is an adventure. It uses eco-friendly materials such as organic cotton, hemp, and Tencel to make affordable clothes.

SHOP TOAD&CO

13. Boden Effie Jersey Dress

Category: Basics, outerwear, underwear, knitwear, loungewear, sleepwear, sportswear, swimwear, shoes, bags, accessories, jewelry
For: Women, men, children
From: London, United Kingdom
Values: Organic, recycled, give back
Prices: $40-$60

Boden is a British clothing retailer selling high-quality, affordable, and organic styles. It uses a large proportion of sustainable materials to make stylish, adorable, casual summer dresses.

Boden takes climate change seriously and steps to reduce its environmental impacts, like using regenerated fibers to make its clothes.

The fashion label also donates to numerous charities to support vulnerable families, educate young people, and empower workers in fashion supply chains.

SHOP BODEN

14. Christy Dawn Camilla Dress

Category: Basics, dresses, loungewear, knitwear, outerwear, maternity, shoes, accessories
For: Women, girls
From: Los Angeles, California, United States
Values: Upcycled, made in the USA
Prices: $80-$410

Christy Dawn is a sustainable fashion designer that creates boho-chic and sexy casual summer dresses exclusively from upcycled fabrics. She offers a big collection of vintage-inspired pieces ethically crafted in Los Angeles.

Christy Dawn designs each style with longevity in mind. Every fashion piece is intentionally timeless and versatile and tailors to fit petite to extended sizes.

The fashion designer aims to make simple, easy-to-wear pieces that will become wardrobe staples. Its summer dresses keep you comfortable while preserving the integrity and beauty of the Earth and its people.

SHOP CHRISTY DAWN

15. Ash & Rose Alessandra Dress

Category: Basics, dresses, activewear, knitwear, outerwear, loungewear, accessories, jewelry
For: Women
From: Boston, Massachusetts, United States
Values: Fair Trade, organic, recycled, artisan craft, vegan
Prices: $10-$130

Ash & Rose is a fashion store that curates easy-chic styles for modern women from clothing brands made in the USA. Most products are Fair Trade, organic, recycled, sustainably sourced, and ethically produced.

Ash & Rose offers beautiful and sexy casual summer dresses from local and global ethical fashion brands. It supports small independent designers and artisans who are making a collective impact.

The online store support designers who are genuinely trying to make a positive impact. It refers to over 15 ethical criteria to choose its partner brands. Each label meets at least 2 of them.

SHOP ASH & ROSE

16. Thought Antonilla Floral Print Maxi Dress

Category: Basics, loungewear, nightwear, activewear, outerwear, underwear, bags, accessories, jewelry
For: Women, men
From: London, United Kingdom
Values: Organic, recycled, give back
Prices: $10-$40

Thought is a sustainable fashion brand creating affordable, stylish, and sexy casual summer dresses with organic materials, such as cotton, hemp, and bamboo viscose.

The eco-friendly clothing brand is committed to considered design, responsible sourcing, and fostering change. It aims to show that there are more sustainable ways to live, dress, and be.

Thought supports TRAID, a UK charity that works to minimize, improve, and transform the environmental impact of clothing manufacturing. Send your clothes back to TRAID to support the people and places making your clothing.

SHOP THOUGHT

17. People Tree Stacie Maxi Dress

Category: Basics, dresses, outerwear, knitwear, underwear, activewear, nightwear, accessories, jewelry
For: Women
From: Tokyo, Japan
Values: Organic, Fair Trade, recycled, artisan craft, give back
Prices: $20-$50

People Tree is a sustainable clothing brand making affordable summer dresses from environmentally-friendly materials, including Fair Trade, certified organic cotton, and recycled fabrics.

In 2013, it became the first fashion company to be awarded the World Fair Trade Organisation (WFTO) product label, guaranteeing dedication and compliance with the principles of Fair Trade.

People Tree offers a wide range of stylish, chic, summery, and attractive dresses, jumpsuits, and skirts. It also sells accessories and jewelry to dress up.

The ethical clothing brand is committed to working with disadvantaged farmers and workers to promote fairer trading conditions. It helps combat poverty and employs people in underserved communities around the world.

SHOP PEOPLE TREE

18. Everlane 90s Mini Dress

Category: Basics, dresses, denim, knitwear, outerwear, activewear, underwear, bags, shoes, accessories
For: Women, men
From: San Francisco, California, United States
Values: Organic, recycled
Prices: $10-$40

Everlane is an ethical fashion brand that creates beautiful essentials at the best factories without traditional markups. It's a great destination to buy high-quality, affordable, sexy casual summer dresses.

The clothing retailer is headquartered in San Francisco, California, and sells primarily online. It uses a high proportion of sustainable materials such as organic cotton, linen, and recycled fabrics.

Everlane is widely known for its radical transparency. It educates consumers on its supply chain, factories, employees, and the price breakdown of each product.

Everlane has transitioned 90% of its apparel materials that contained virgin plastic to recycled materials made from plastic water bottles, fishing nets recovered from the oceans, and other items destined for the waste stream.

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19. IVY & OAK Summer Slip Dress

Category: Basics, dresses, loungewear, knitwear, outerwear, underwear, maternity, bridal, accessories
For: Women, children
From: Berlin, Germany
Values: Organic, recycled
Prices: $20-$130

IVY & OAK is a sustainable fashion brand that designs beautiful, fashionable, affordable, sexy casual summer dresses for women who value quality, simplicity, sustainability, and style.

IVY & OAK creates stylish collections made to last and focused on timeless designs, feminine silhouettes, and attention to detail. It strives to offer high-quality, inspiring, and easy-to-wear clothing.

The clothing brand uses sustainable and natural fabrics such as organic cotton, linen, and recycled materials like polyester and Tencel lyocell made with wood pulp from sustainable forests.

SHOP IVY & OAK

20. Sweaty Betty Take It Easy Dress

Category: Basics, dresses, loungewear, knitwear, outerwear, sportswear, underwear, bags, shoes, accessories
For: Women
From: London, United Kingdom
Values: Organic, recycled, inclusive, give back
Prices: $20-$40

Sweaty Betty makes sexy sportswear and casual summer dresses for women. It offers affordable and ethically made clothing to keep with you at the gym and on the weekend.

Sweaty Betty is on a journey to help create a sustainable future. Its core mission is to empower all women through fitness and beyond. It also makes sure inclusivity is at the heart of everything it does.

Sweaty Betty uses a good proportion of recycled materials and takes initiatives to reduce its waste, carbon footprint, water consumption, and chemicals.

SHOP SWEATY BETTY

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Alex Assoune (MS) is a global health and environmental advocate. He founded Panaprium to inspire others with conscious living, ethical, and sustainable fashion. Alex has worked in many countries to address social and environmental issues. He speaks three languages and holds two Master of Science degrees in Engineering from SIGMA and IFPEN schools.