Women's size 8. Used once but did not fit. Soft, flexible upper in black—which means no break-in period, ever. Comfortable insoles and durable outsoles in black. 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. SUSTAINABILITY 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.