Rothy's Women's Black The Square Flat Comfort Travel Shoes Size 12 NWOT. A classic with an edge, our square-toed flat in black features a rounded vamp and exceptional comfort for style that looks good from every angle. Plus, it’s knit from plastic bottles. Soft, flexible upper in black—which means no break-in period, ever. Comfortable insoles in soft grey 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. Slip out insoles. Pop shoes and insoles into the washing machine. Use cold water, mild detergent and the delicate cycle. No heat, please—always let your shoes air dry. shoes, women, flat, comfort travel, black, winter, summer, spring, fall, solid, comfy, casual, soft, flexible.123 Rothy's Box 9.