TWOTHIRDS

PRODUCTION LOCATIONS

• Portugal
• Spain

WORKING CONDITIONS & LIVING WAGES

When Lutz Schwenke, CEO of TWOTHIRDS, spent a year in Hawaii as a teenager, he began to see the ocean differently. It became a source of joy and motivation for him. Later, Lutz worked for the UN, which influenced his vision for the more sustainable brand he would eventually found.

Today, the TWOTHIRDS team comes from all over the world. They are a diverse team of creatives, designers and ocean lovers whose goal is to find a connection with the people who wear their clothes.

The company produces primarily in Portugal, as the northern region of the country has a traditional textile manufacturing industry known for its high quality and precision craftsmanship. Final manufacturing stages (cutting and sewing) also take place in Spain.

In addition, frequent visits to the facilities allow them to build long-lasting and trusting relationships. According to the company, they fully believe that security and fair payments create an environment of trust, which benefits all actors involved in the production of their garments.

In Portugal, the minimum wage rose 6% in 2025 compared to 2024, above the rate of inflation. In Spain and France, the minimum wage is at least as high as the living wage. All suppliers are required to abide by TWOTHIRDS’ strict Supplier Code of Conduct.

MATERIALS

• Organic cotton
• Tencel Lyocell
• Wool
• Linen
• Recycled nylon (e.g. ECONYL®, SEAQUAL®)
• Recycled polyester
• Recycled cotton
• Deadstock fabrics and yarns

TWOTHIRDS sources unwanted materials from elsewhere. These include leftovers from production processes, post-consumer waste, materials recovered from the environment – especially the ocean – and deadstock. 

They also use recycled fabrics and blends, such as recycled nylon, recycled cotton and recycled polyester. 

TWOTHIRDS is now certified to four independent textile standards: GOTS (Global Organic Textile Standard) and OCS (Organic Content Standard) for organic materials, and GRS (Global Recycled Standard) and RCS (Recycled Claim Standard) for recycled materials. These standards verify the organic or recycled content of a product and track the material through every step of the supply chain. GOTS and GRS also set social, environmental and chemical requirements for production.

For swimwear, they use ECONYL® and SEAQUAL® fibres partly derived from ocean-impact plastic such as waste fishing nets. Their production emits around 60% less greenhouse gases compared to virgin synthetic fibres. Virgin synthetics account for less than 2% of TWOTHIRDS’ total material footprint.

PACKAGING

• All customer packaging is 100% plastic-free, consisting of paper bags and cardboard boxes made from recycled or mixed compositions.
• Packaging used within the supply chain also consists of cardboard boxes. The tape used is likewise plastic-free, crafted from a paper resin and rubber blend.

WATER USAGE & CHEMICALS

TWOTHIRDS believe that they can only be sustainable if they leave as little negative trace as possible. That is why they have set out to reduce their own carbon footprint as much as possible. To do this, they collaborate with research institutes, suppliers and other organisations to improve the sustainability of their products.

They also support suppliers with investments in renewable energy production. 
TWOTHIRDS uses 100% green energy at their headquarters.

TWOTHIRDS uses materials such as organic cotton, linen and botanic fibres like TENCEL Lyocell, which have a smaller water footprint than regular cotton and whose manufacturing processes include water recycling and purification.

The brand states that in its partner facilities in Northern Portugal, the wet processes (such as dyeing and washing) are located in factories with on-site wastewater treatment plants, contributing to increased water quality in Northern Portugal.

Several of their wool yarn suppliers hold chemical safety certifications: their yarns are Oeko-Tex® Standard 100 certified, guaranteeing they are free from harmful substances, and their Austrian-German spinner Schoeller is a bluesign® System Partner, committed to eliminating harmful substances from the very start of the manufacturing process.

The brand has partnered with ocean conservation organisations actively contributing to reef restoration, beach clean-ups, and marine animal care.

CIRCULAR PRODUCT DESIGN

TWOTHIRDS integrates recycled materials throughout their collections, contributing to a more circular approach to fashion. 

Their garments are built to last, reducing the need for frequent replacement. Where possible, the brand also works with leftover fabrics from existing stock to give surplus materials a second life as new pieces.

This circular approach extends to their wool yarns: four of their spinners are certified to the Global Recycled Standard (GRS), which certifies recycled content as well as traceability and social and environmental practices in the production of their recycled yarns.

CIRCULAR BUSINESS MODELS

TWOTHIRDS produces only what is ordered via pre-order. In the event that a garment does not sell as well as predicted, they transform the material into another garment or sell it via online sales or physical pop-up shops. They pride themselves on never sending finished products to landfill or incineration. As a result, they rarely produce surplus stock.

TWOTHIRDS’ philosophy of using what they have, before thinking about creating something new, is a key way to promote circularity and reduce the environmental impact of the fashion industry. The same applies to trimmings and all kinds of smaller items used in their clothing.

DISTANCE & COMPLEXITY OF THE SUPPLY CHAIN

• Portugal (production, fabric and yarn production) 
• Spain (production) 
• France (fabric production) 
• Austria (fabric and yarn production) 
• Italy (fabric and yarn production) 
• Germany (yarn production) 
• Ireland (yarn production) 
• HQ: Barcelona, Spain

Local production is a key aspect of TWOTHIRDS’ supply chain. They locate their final production in Portugal and Spain to make their pre-order system possible. In addition, some raw materials are also sourced in Europe, such as Shetland wool or linen. Fabrics are produced in Austria, France, Italy and Portugal.

Their wool yarns are spun by certified European suppliers in Italy, Austria, Germany, Portugal and Ireland.

Keeping local and centralised production allows them to make frequent visits to work closely with their suppliers over time and build strong relationships based on trust and transparency.

To give an idea of how localised their supply chain is: their main Portuguese provider produced 58.3% of TWOTHIRDS clothing in 2024, and their second biggest supplier produced a further 32.2%, both operating hyper-localised networks of interconnected textile companies, all within a 25km radius of each other.

TRANSPORTATION

• Transportation within the supply chain relies on a combination of boat and road freight for Tiers 3 and 4, while Tiers 1 and 2 are served exclusively by road. 
• For e‑commerce, 99% of deliveries are by road, with the logistics warehouse based in Germany to serve the predominantly European customer base. The remaining 1% is airfreight to minor markets outside Europe.

• Shetland Wool (mulesing-free)
• Merino Wool (mulesing-free)

Both wools are sourced in line with a strict mulesing-free policy, from certified wool yarn suppliers in Italy, Portugal, Austria, Germany and Ireland.

Virgin wool is covered by the Responsible Wool Standard (RWS), held by suppliers, which guarantee animal welfare and responsible land management. 

The Woolmark certification, held by two of their suppliers, confirm the quality and authenticity of pure wool. 

Recycled wool blends are certified to the Global Recycled Standard (GRS), organic cotton in wool blends is GOTS certified, and chemical safety is ensured through Oeko-Tex® Standard 100 and the bluesign® system. 

Their Irish spinner guarantees the use of 100% Irish wool of certified origin, supporting the local economy and traditional production methods.

They are also signatories of the Four Paws brand letter of intent to end mulesing as a practice.

PRODUCT DESIGN

At TWOTHIRDS, they believe that the solution to more sustainable fashion is not just about using different fabrics, but also involves durability. That is why they create garments with timeless and quality designs. The company releases four collections annually.

TWOTHIRDS pays attention to detail. Embellishments, such as zippers and buttons, are one of the main causes of products being thrown away. That is why, in addition to using quality fabric, they also use high quality trimmings to make their products last longer.

SLOW FASHION PROCESSES

TWOTHIRDS is one of the pioneer brands in implementing the pre-order system. With this system, they can estimate how many pieces of a specific garment they are going to sell, and thus order exact quantities and avoid overproduction. According to the European Environment Agency, the industry average for unsold stock is 21%. TWOTHIRDS’ pre-order model brings their overproduction rate down to just 0 – 4%.

TRANSPARENCY ON PRODUCT

On their product pages, TWOTHIRDS provides a clear breakdown of material composition. Each product also states where it was designed and crafted. However, there is no product-level traceability that allows a customer to trace their specific purchase back to a named factory or exact production batch. 

TRANSPARENCY ON PROCESSES

TWOTHIRDS publishes an annual Eco Report on their website, which serves as their main transparency tool covering environmental and social performance. On their website they share detailed information about their supply chain structure, including production countries, the hyper-localised network of suppliers in Northern Portugal, and the fact that wet process suppliers have on-site wastewater treatment plants. They state they can identify 100% of their Tier 1 and Tier 2 suppliers and 95% of their dye suppliers.

Traceability is provided at brand level rather than at individual product level: a customer can understand how and where TWOTHIRDS generally produces, but cannot trace a specific purchased item through the supply chain. 

The brand is B Corp certified, which involves independent third-party assessment of their social and environmental practices. In addition, its GOTS, OCS, GRS and RCS certifications mean that the organic and recycled content of its materials is independently verified along the supply chain.