The Original Slip On Sneaker in Navy *current on there website* Soft, flexible upper in navy. Comfortable insoles in medium tan and durable outsoles in cream. Features a white and medium tan heel stripe for a sporty touch. All of our styles are machine washable—so they last for the long haul. Slip out insoles. Toss insoles and shoes in the wash with cold water. Air dry. No heat, please. Wear again and again. Knit from Rothy’s signature thread, which is spun from plastic bottles. Learn more. It took about 13 plastic bottles to knit this pair of shoes. In 2023, Rothy’s factory achieved TRUE Platinum certification, validating that it’s operating with Zero Waste Practices by diverting solid waste from landfill, incineration and the environment.