The Cocoon baby Swaddle + Sleep bag is designed to be both easy to use and difficult to escape from. The simple zip up design will keep baby snug and securely swaddled without the need for complicated wrapping. The 2.5 TOG Cocoon Swaddle + Sleep Bag is designed for Winter temperatures between 17°C and 23°C. It is made from an Organic Cotton Jersey outer layer and filled with 100% organic cotton for warmth. FEATURES: Made with super soft breathable Organic Cotton 2-way zipper for easy diaper change. Officially hip friendly Poppers in the armholes to help you transition your baby to arms free FABRIC: Outer: 95% Organic Cotton/ 5% Elastane. Inner: 95% Bamboo Viscose/ 5% Elastane. Filling: 100% Organic Cotton