Little Sleepies makes the softest, stretchiest bamboo fabric pajamas that feel like butter. Bamboo is naturally hypoallergenic, antibacterial and regulates body temperature, making it perfect for year-round wear. No snaps, buttons or interior tags. Extra length - simply roll up the arms/legs as needed. No chemicals. Designed to fit snugly in accordance with all CPSC regulations. 95% viscose from bamboo; 5% spandex.