95% Rayon made from bamboo, 5% Spandex Imported IDEAL SLEEP SACK - Our baby sleep sacks are made of rayon made from bamboo, which is buttery soft, breathable, hypoallergenic, thermal - regulating, moisture - wicking, helping to keep your baby comfortable and dry, making your baby more cozy and warm. THE SOFTEST FABRIC - We've carefully blended 95% rayon made from bamboo with 5% spandex, much softer than cotton and wool, which makes our sleep sacks also much softer than most other sleep sacks on the market. This hypoallergenic soft fabric is perfect for your baby's delicate skin! SAFETY ABOVE ALL - We prioritize your baby's safety. A zipper protector shields your baby's face from scratching. Arm and Neck Openings sized with latest research. Sleeveless to reduce the risk of overheating. ROOMY & LONGER WEAR - Toddler Sleep Sack with Feet allows your baby to move around freely, crawl, walk, but still keep warm, and promote healthy hip development. 1.0 TOG rating for the perfect all-season weight. Reinforced Stitching and high quality fabric for better durability. EASY TO USE & CARE - Our toddler sleeping sack is designed to provide convenience for parents.2-Way Zipper J-Shaped opens flat fully or unzips the lower half for easier diaper changes and quicker line drying.Our sleep sacks are designed to be machine washable, making cleaning a breeze.（Ensure the baby is intended to be dressed in inner clothing before being put into the sleeping bag.） EasyFi toddler sleep sack is a game-changer for both babies and parents. Crafted with care, it's made from ultra-soft and hypoallergenic rayon made from bamboo, ensuring a cozy and breathable environment that regulates body temperature and wicks away sweat. The super-soft fabric is gentle on delicate skin, outperforming cotton and wool in terms of softness, breathability, and moisture absorption. Safety is paramount, with a deep, narrow neckline and zipper protector, while the breathable fabric prevents overheating. Designed for convenience, the 2-way side zipper simplifies midnight diaper changes, and the roomy leg space promotes healthy hip development. Plus, it's machine washable and built to last.