The Moon Sleep Sack Is A Lightweight Baby Wearable Blanket, An Ideal Replacement For A Loose Blanket In The Crib. This Baby Sleeping Sack Is Sized From Newborn To Toddler. Its Comforting Cocoon-Like Shape Helps Your Child Feel Cozy And Secure. Oversized And Extra Quiet, High-Quality, 2-Way Zipper For Easy Diaper Changes. 100% Cotton High Quality, Breathable Fabric. Organic Cotton – Moon Sleep Sacks Are Made With Super Soft, Lightweight, And Breathable 100% Organic Cotton, Keeping Your Baby Warm, Comfy, And Sleeping Peacefully.2-Way Zipper – Our Sleep Sacks Feature Sturdy 2-Way Zippers That Can Be Unzipped From The Bottom For Quick Nappy Change And Also From The Top.Safe And Secure – Our Sleep Sacks Are Deliberately Designed To Provide Your Baby With A Secure And Comfortable Sleeping Environment.Sleeveless Design – Our Sleep Sacks Are Tailor-Made To Fit Over Pajamas And Intelligently Created To Allow Your Baby'S Legs To Move Freely For Healthy Hip Development.Sizing Information: Small/Medium, Suitable For 0-6 Months Baby