Comfy for them. Easy for you. The best sleepwear (or all day wear) around for your little ones. Now for the details: Made of the softest, stretchiest bamboo viscose fabric that feels like butter. It is gentle on sensitive skin and perfect for year-round wear. Read more about why we love our fabric here. No snaps, buttons or interior tags. Easy for you, comfy for baby! Extra length. Simply roll up the arms/legs as needed. This, combined with the extra stretchy fabric allows sizing to be very flexible. Need sizing help? Size chart can be found here. No chemicals. Do you know most pajamas are treated with harsh chemicals that make them flame-resistant? Ours are designed to fit snugly in accordance with all CPSC regulations. 95% viscose from bamboo; 5% spandex. Machine wash on cold. Little Sleepies is proud to donate a portion of each and every sale to Alex's Lemonade Stand Foundation for Childhood Cancer.