Soft, flexible upper, which means no break-in period, ever. Comfortable matching insoles and chic tortoise shell outsoles. Fully machine washable, so they’re like new again and again. Our shoes don’t stretch much—so make sure they are not too snug. Knit from Rothy’s signature thread, which is spun from single-use plastic bottles. Learn more. It took about 11 plastic bottles to knit this pair of shoes.