How Sustainable Is Rothy´s?

Founded in 2012 in the US, Rothy’s makes knit-to-shape shoes and bags from recycled materials like plastic bottles and coastal plastic waste.

Established in 2012 in the United States by co-founders Stephen Hawthornthwaite and Roth Martin, Rothy’s is a San Francisco-based footwear and accessories brand known for knit-to-shape shoes and bags made from recycled materials, including repurposed plastic bottles and ocean-bound plastic.

1. Environmental
Sustainability

Rothy’s positions sustainability “at the heart of all we do,” with a clear focus on recycled materials, durable products, and a certified zero-waste factory. It shares specific achievements around recycled inputs, packaging reduction, and end-of-life solutions, but offers very little quantified data on climate, water, or overall material mix.
IMPACT AREA 01

Materials
& Sourcing

  1. All Rothy’s are knit with 100% recycled materials, with uppers spun from repurposed plastic bottles, and its signature rPET thread is Recycled Content Certified, proving that it comes entirely from recycled sources.  
  2. The brand reports having transformed at least 225,794,969 plastic bottles into products, avoiding waste.
  3. Bags are knit from 100% recycled materials, using a blend of OceanCycle-certified ocean-bound plastic and the signature recycled thread.
  4. Rothy’s highlights a small set of “hero” materials, including hemp and RWS-certified merino wool, with merino shoes knit from a proprietary blend of RWS wool and recycled thread.
  5. Other components include algae-based strobel boards and outsoles made with recycled and plant-based TPU, plus bag hardware made from non-toxic virgin metal that is nickel- and lead-free.
  6. Overall, Rothy’s puts clear emphasis on recycled and certified inputs, but does not publish a full fiber breakdown.
IMPACT AREA 02

Climate
& Emissions

  1. In the reviewed materials, Rothy’s does not disclose greenhouse gas emissions (Scopes 1, 2, or 3) or publish a climate strategy aligned with science-based or net-zero targets.
  2. The brand notes that its wholly owned factory workshop in Dongguan, China is LEED Gold certified, with LEED Platinum offices, but does not share related energy or emissions data.
  3. Rothy’s presents recycled materials, circular design, and reduced packaging as climate-relevant solutions, yet no life-cycle assessments or quantified climate comparisons are published.
IMPACT AREA 03

Water
& Chemicals

  1. For its ocean-bound marine plastic, Rothy’s uses OceanCycle-certified materials collected within 30 miles/50 km of coastlines or waterways in regions with mismanaged waste. OceanCycle’s standard includes environmental criteria such as proper wastewater and chemical handling in the recycling supply chain.
  2. The brand specifies that bag hardware is made from non-toxic virgin metal that is nickel- and lead-free, addressing some common heavy-metal concerns in trims. Additional details would add validity, though.
  3. Beyond these assurances, Rothy’s does not disclose water-use data, reduction targets, wastewater treatment information, or a brand-wide chemical management program (e.g. RSL, ZDHC).
IMPACT AREA 04

Circularity
& Waste

  1. Rothy’s emphasizes product durability and longevity, positioning fast fashion as a burden on the planet and stating that its machine-washable products are made to last for years; testing shows bag handles can hold over 100 pounds.
  2. Its patented seamless knit-to-shape construction is claimed to generate 30% less material waste than traditional cut-and-sew methods, while also avoiding hard seams and stiff edges.
  3. The brand encourages customers to resell, gift, or donate items that are still wearable, and offers a Rothy’s Recycling program for end-of-life shoes and bags, which can be dropped off in stores. Participants receive a US$20 discount code per pair or bag recycled. Returned products are disassembled into upper, insole, and outsole, then shredded or baled and sent to recycling partners for new uses.
  4. Rothy’s boxes are made from recycled cardboard and are strong enough to ship without an additional outer box, which the brand says has saved over 3.3 million pounds of cardboard. 
  5. The Dongguan factory workshop achieved LEED Gold in 2022, with LEED Platinum offices, and in 2023, the facility obtained TRUE Platinum zero-waste certification, indicating high waste-diversion performance.
  6. Rothy’s defines circularity as a whole-brand approach, from sourcing through design, manufacturing, breakdown, and remaking. They acknowledge that “circular production” does not yet fully exist. Its internal standard is to use a majority of recycled or bio-based materials and to offer an end-of-wear solution for every product.
  7. However, the brand does not disclose volumes of products collected via take-back, specific waste-diversion rates, so the scale of its circular initiatives remains unclear.

2. Social
Sustainability

Socially, Rothy’s leans on third-party certifications - RWS for wool and OceanCycle for ocean-bound plastic - plus a short-term external Sustainability Council. However, it shares almost no concrete information about working conditions, wages, or human-rights due diligence in its wider supply chain or within its own workforce.
IMPACT AREA 05

Animal
Welfare

  1. Rothy’s uses RWS-certified merino wool, and states that its merino styles are knit from a proprietary blend of RWS wool and recycled signature thread. RWS recognizes farmers who treat sheep responsibly and manage land progressively.
  2. Most of the materials Rothy’s highlights - recycled plastics, hemp, algae-based and plant-based components - are synthetic or plant-based, which likely reduces reliance on animal fibers in the ranges it promotes.
  3. The brand does not report the share of wool in its overall material mix, nor does it publish a comprehensive animal-welfare policy.
IMPACT AREA 06

Workplace
Practices

  1. Brazilian company Alpargatas owns 49.9% of Rothy's, while the founders and other shareholders retain the remaining shares of the company.
  2. From March 2021 to March 2023, Rothy’s convened a Sustainability Council made up of five external scientists, change-makers, and sustainability experts, plus internal leaders (its co-founder & President, Head of Sustainability, and VP of Design) to bring diverse perspectives on circularity, climate, and sustainable manufacturing into Rothy’s strategy. 
  3. Despite this governance structure, Rothy’s does not disclose basic workforce data (number of employees, locations, gender balance, or diversity metrics), nor does it share information on wages, benefits, parental leave, health and safety, or DEI programs.
  4. As a result, workplace conditions at Rothy’s itself remain largely undocumented in public reporting.
IMPACT AREA 07

Supply Chain
Workers’ Rights

  1. Rothy’s uses OceanCycle-certified ocean-bound plastic for some of its shoes, bags, and accessories. The FAQ states that this plastic is collected within 30 miles of coastlines and that OceanCycle certification ensures it is genuinely ocean-bound, uses ethical labour practices, and meets waste and wastewater standards.
  2. According to OceanCycle’s own description, certified material must be post-consumer waste collected near coastlines or key waterways, in regions with mismanaged waste; it must be collected under conditions that prohibit harmful child labour and require fair wages, follow proper wastewater and chemical practices, and maintain end-to-end traceability from bottle collection through manufacturing.
  3. Rothy’s owns a LEED and TRUE-certified factory in Dongguan, China, which is a positive signal for environmental and waste practices. At the same time, the brand shares no data on wages, working hours, freedom of association, or health and safety at this facility, so we cannot assess its social performance there.