Knit with a combination of thread made from marine plastic, collected 30 miles from waterways, and Rothy’s signature thread, which is spun from single-use plastic bottles. Learn more. This bag is made with approximately 839 grams of ocean-bound marine plastic. In 2023, Rothy’s factory achieved TRUE Platinum certification, validating that it’s operating with zero waste practices by diverting solid waste from the landfill, incineration and the environment.