If you're a fan of eco-conscious apparel with a serious love for the ocean, you're probably already familiar with Twothirds. The brand has won over hearts with its stylish, laid-back pieces made from sustainable and recycled materials, including ocean plastics. It's the kind of clothing that lets you wear your environmental values without compromising on style.
For those who love Twothirds' blend of casual coastal vibes and a planet-friendly mission, the good news is there are plenty of other incredible brands committed to protecting our oceans. Here are 18 similar brands worth adding to your wardrobe.
Co-founded by pro surfer Kelly Slater, Outerknown is a natural first stop for anyone who loves ocean-conscious fashion. They create stylish essentials like swimwear, activewear, and their famous Blanket Shirts, all from eco-friendly fabrics like organic cotton and recycled polyester. Similar to Twothirds, there’s a deep commitment to durability and sustainability baked into every piece.
While Twothirds has a distinctly European coastal vibe, Outerknown feels more rooted in cool, Californian surf culture. It's a great choice if you're looking for versatile, timeless pieces that are built to last and designed to minimize environmental impact. Prices are in a similar mid-range tier, focusing on investment pieces you'll wear for years.
Shop now at outerknown.com
A true pioneer in sustainable outdoor gear, Patagonia shares Twothirds' deep respect for the planet, especially the ocean. They offer high-performance swim and surf wear, including innovative wetsuits made from plant-based rubber, alongside everyday casuals crafted from recycled and organic materials. Patagonia's mission goes beyond products, they are heavily involved in environmental activism.
While Twothirds focuses on a coastal lifestyle aesthetic, Patagonia is geared more towards rugged outdoor adventures. If you need gear that’s technically advanced enough for a surf trip but stylish enough for the beach bonfire afterwards, Patagonia is an unbeatable choice.
Shop now at patagonia.com
Rapanui is an excellent UK-based alternative known for its fun, casual clothing made in a completely circular supply chain. They use organic cotton and create products designed to be sent back and remade into new items when they're worn out. Their collections are full of ocean-inspired graphic tees, hoodies, and flannel shirts that feel youthful and vibrant.
While Twothirds has a more minimalist and modern design sensibility, Rapanui leans into a more playful, accessible style. If you love graphic prints that celebrate marine life and a brand that’s radically transparent about its manufacturing process, you’ll love Rapanui's vibe and affordable price point.
Shop now at rapanui.co.uk
Known for its chic, feminine dresses, Reformation also makes a stunning line of swimwear and activewear from sustainable materials like deadstock fabrics and recycled fibers. Their ethos is centered around making trendy, fashionable clothing with a much smaller environmental footprint.
Reformation brings a more high-fashion, trend-driven energy compared to Twothirds’ casual, laid-back feel. If you want sustainable beachwear that feels ready for a glamorous resort getaway or a poolside party, Reformation’s an amazing pick. Their price point is slightly higher, reflecting their fashion-forward designs.
Shop now at thereformation.com
Born from the needs of hardy British cold-water surfers, Finisterre is a functional and sustainable brand designed to stand up to the elements. As a Certified B Corp, they are committed to responsible manufacturing, creating everything from technical waterproof jackets and cozy knitwear to organic cotton basics. Their whole ethos revolves around a love for the sea.
Finisterre shares Twothirds' deep connection to the ocean but is more focused on performance and durability for harsh coastal environments. If your coastal lifestyle is less about sunny beach days and more about windswept cliff walks, Finisterre’s high-quality, practical gear is a perfect match.
Shop now at finisterre.com
Bureo takes ocean waste and turns it into functional goods. They’re best known for their program that collects and recycles discarded fishing nets - one of the most harmful forms of ocean plastic - into skateboards, sunglasses and apparel. Their clothing line features jackets, hats, and tees that directly support marine conservation programs.
Compared to Twothirds' broader apparel collection, Bureo offers a more focused range of products rooted in a very specific material story. Shopping with Bureo feels like you're directly participating in ocean cleanup, making it a powerful choice for anyone passionate about tangible impact. Their style is practical, durable, and understated.
Shop now at bureo.co
While famous for its cult-favorite sneakers, Veja embodies the sustainable principles that ocean lovers admire. The brand uses innovative, eco-friendly materials like B-Mesh, which is made entirely from recycled plastic bottles, along with organic cotton and ethically sourced Amazonian rubber. Their minimalist aesthetic is perfect for pairing with any laid-back, coastal-inspired outfit.
Veja is primarily a footwear and accessories brand, so they complement an ocean-wear wardrobe rather than build one from scratch. If you love Twothirds for its stylish commitment to recycled materials, a pair of slick Veja sneakers is the perfect finishing touch to your look.
Shop now at veja-store.com
Founded by supermodel Liya Kebede, Lemlem is an artisan-driven brand specializing in swimwear, resort wear, and gauzy casual pieces. Everything is handwoven in Africa from natural, eco-friendly materials, which helps preserve traditional artisan techniques while supporting local communities. The brand's vibrant stripes and easy-breezy silhouettes are perfect for a beach vacation.
Lemlem has a much more bohemian and colorful vibe than Twothirds, focusing on handcrafted textures and bold patterns. If you're looking for unique, ethically made statement pieces for your next coastal getaway, Lemlem's beautiful creations are a fantastic choice.
Shop now at lemlem.com
Another brand born from the beautiful British coast, Seasalt Cornwall creates clothing inspired by the creative and maritime heritage of Cornwall. They are known for their unique prints, high-quality natural fabrics like organic cotton and linen, and timeless, practical styles. Their rainwear, dresses, and knitwear are designed to be both beautiful and functional for a life by the sea.
Seasalt Cornwall offers a more classic and print-heavy aesthetic than Twothirds' minimalist modernism. It's a fantastic brand for building a colorful, comfortable, and sustainable wardrobe with a charming coastal feel.
Shop now at seasaltcornwall.com
Girlfriend Collective started by making chic, inclusive activewear from recycled water bottles and has since expanded to include swimwear made from recycled fishing nets. The brand is celebrated for its super-soft fabrics, minimalist designs, and an extensive range of sizes, all made with transparency and eco-consciousness at its core.
While Twothirds covers a broader lifestyle range, Girlfriend Collective is the expert when it comes to sustainable activewear and swimwear. If you're specifically looking for leggings, sports bras, or swimsuits that are eco-friendly and stylish, their pieces are second to none in comfort and quality.
Shop now at girlfriend.com
Carve Designs was founded by two friends who wanted to create functional, stylish, and sustainable surfwear for women. The brand now offers a full range of apparel, including swimwear, rash guards, dresses, and tops, with a focus on great fits and fabrics made from recycled plastic bottles. Their style is versatile enough for a day on the waves or a walk along the shore.
The vibe at Carve Designs is relaxed, sporty, and accessible. It’s an amazing, often more affordable alternative to Twothirds if you're looking for eco-conscious pieces specifically tailored for an active life by the water.
Shop now at carvedesigns.com
Sustainable Surf promotes eco-friendly surf culture through its ECOBOARD Project and ocean health initiatives. While primarily an organization, they partner with ocean-minded brands on gear and apparel that represent a deep commitment to marine conservation. Their product collaborations feature items often made from reclaimed or upcycled materials, directly supporting their mission to be a "Deep Blue" company.
Shopping from Sustainable Surf's collaborations is less about a single brand aesthetic and more about supporting the core movement for a healthier planet. It’s a great way to discover new eco-innovations and directly fund programs protecting the oceans we love to play in.
Shop now at sustainablesurf.org
Vissla is a surf brand that champions a "create and innovate" mentality, which extends to its use of sustainable materials. They offer a great lineup of boardshorts, wetsuits, and tees made from things like recycled polyester and organic cotton. The brand has a youthful, modern edge that appeals directly to the surfing community.
Compared to Twothirds, Vissla’s style is more explicitly rooted in contemporary surf culture, with a focus on performance and innovation. It’s an awesome choice for anyone seeking functional surf gear that doesn't compromise on sustainability or style.
Shop now at vissla.com
The Great offers a playful, nostalgic take on American classics, with a laid-back feel that is perfectly suited for a beachy lifestyle. While not exclusively an eco-brand, they have a solid collection of vintage-inspired swimwear and casual wear made from more sustainable materials like recycled polyester and organic cotton blends. Their style is effortlessly cool and exceptionally comfortable.
If you like the sustainable mindset of Twothirds but want an aesthetic that is more vintage and Americana-inspired, The Great offers beautiful, high-quality pieces. Their prices reflect their designer quality and unique, softly worn-in feel.
Shop now at thisisthegreat.com/
Ecoalf’s motto, "Because There Is No Planet B," says it all. This Spanish brand is a leader in transforming trash - from fishing nets to plastic bottles and even used tires - into high-quality fabrics for their clothing and accessories. They offer a wide range of products, including sleek outerwear, sneakers, and modern swimwear with a minimalist, urban aesthetic.
Ecoalf shares Twothirds’ deep commitment to recycled ocean plastics but applies it to designs that feel more technical and fashion-forward. If your style leans contemporary and you appreciate a brand built on scientific innovation, Ecoalf is a must-see.
Shop now at ecoalf.com
Vitamin A marries a chic, Californian-cool aesthetic with serious sustainability. Known for pioneering the use of EcoLux™, a premium swim fabric made from recycled nylon, designs focus on flattering fits and timeless styles. The brand produces everything locally in California, further reducing its carbon footprint.
While Twothirds offers casual everyday wear, Vitamin A specializes in luxury swimwear and resort apparel. It's a higher-end alternative perfect for those looking for sustainable, designer-quality bikinis and cover-ups that look and feel amazing.
Shop now at vitaminaswim.com
FANATIK is a vibrant swimwear brand that designs supportive, comfortable suits from fabrics made with recycled ocean plastics. Sustainability is at the heart of their mission, and they pair their eco-friendly materials with bold prints and bright colors perfect for an active beach day. The brand also focuses on providing a great fit for a range of body types.
If you find Twothirds' color palette a bit too subdued, FANATIK is the answer. Their energetic, playful designs bring a ton of personality to eco-conscious swimwear, ensuring you can stand out on the sand while supporting ocean preservation.
Shop now at fanatik.co
Prana designs versatile clothing for all kinds of adventures, from yoga to climbing to just exploring your city. Their commitment to sustainability is woven into everything they do, with extensive use of organic cotton, recycled polyester, and Fair Trade Certified factories. Their swimwear and casual wear collections are perfect for a comfortable, eco-conscious coastal lifestyle.
Prana offers a broader range of active and outdoor apparel than Twothirds, sharing a similar focus on comfortable, practical pieces made responsibly. If you need clothing that transitions seamlessly from a hike to the beach, Prana is a fantastic all-rounder.
Shop now at prana.com
At Apart Style, we're obsessed with curating the best in fashion, beauty, and jewelry to help you discover new brands we think you'll love. Every brand we feature is independently selected by our editorial team based on quality, style, and uniqueness. When you make a purchase through our links, Apart Style may earn a commission - which helps support our small team, and allows us to continue bringing you the best in online style brands.
Looking for more inspiration? Explore our full brand directory or check out our curated brand guides to find your new favorite thing.
