Description Made from an all-natural viscose bamboo blend, this fabric will keep baby cool yet cozy at the same time -- yep, it’s temperature regulating! The silky-smooth fabric is soft, breathable and comfortable, making it the perfect choice for the most sensitive baby skin.  Specifications * 95% viscose from bamboo, 5% spandex * Two-way YKK zippers * Foldover mittens on newborn and 0-3 month sizing  * Foot grips on 3-6 month + sizing * Ankle elastic keeps little feet in place * Zipper garage at neckline keeps zipper from rubbing against baby’s neck  * Zipper lining prevents direct contact from zipper to baby’s tummy [no interfering with those fresh belly buttons] * Tag-free neckline  * Machine wash cold, tumble dry low heat Recommended Size Guidelines * Newborn - < 10 lbs (up to 22”) * 0-3 months - 8-12 lbs (up to 23”) * 3-6 months - 12-15 lbs (up to 25”) * 6-9 months - 15 - 18 lbs (up to 27”) * 9-12 months - 18-21 lbs (up to 28”) * 12-18 months - 21-24 lbs (up to 30”) Pree