Made of the softest premium bamboo. Durable and well designed your little ones can sleep and play in these cozy pajamas. These sets feature a biker style short and matching top. Sizes Available : 2 Years - 12 Years | Size Chart Material : 95% bamboo viscose / 5% spandex A key benefit of bamboo clothing is that it is naturally hypo-allergenic, gentle on the skin, and highly breathable. It keeps skin cool in summer and warm in winter by wicking away any excess moisture. No need for both summer and a winter wardrobe – with bamboo clothing your babe will be comfortable year round. To ensure your new ff product lasts as long as possible, consider these care tips : Washing Machine Settings : Use a gentle cycle with cold water to minimize wear and tear.