Birkenstock Kids' Mayari Sandal (Toddler/Little Kid)Size Chart Your favorite sandal, sized down for kids. The Mayari's toe loop crisscrosses over the foot to help keep them comfortable and secure. Designed in their signature Birko Flor for a smooth feel that's easy to clean. Complete with an original contoured footbed to support them through days of play. Contoured cork latex footbed creates custom support with wear Birko Flor synthetic upper Suede footbed lining Flexible EVA sole Two adjustable straps