Woolino Size 18-36 Months. Used excellent condition. One small flaw near s in “months” on inside lining, shown in photos. Premium Natural Fabrics: silky soft Australian merino wool lining & organic cotton outer Merino wool regulates body temperature unlike any other fiber, keeping baby warm when it's cold and cool when it's hot Can be used in all 4 seasons - suitable for room temperatures 63-77F (17-25C) Foot openings allow child to sleep with feet out Unzips from bottom for easy diaper changes Zipper-pull guards to protect child's skin Best Comfort for Better Sleep A study done by the University of Sydney has found that a better night's sleep is achieved when sleeping in wool. Superfine merino wool is the perfect fiber to have next to your child's sensitive skin. It's cuddly soft and uniquely temperature regulating - a perfect micro-climate for safer and longer sleep.