Product details Fabric type 100% Merino Wool Lining / 100% Organic Cotton Outer Care instructions Machine Wash Origin Imported Fur description Natural Wool (Fur Origin: Not Specified) About this item Luxuriously Soft & Premium Quality – Made with 100% Australian Merino wool lining and a GOTS-certified organic cotton shell, this organic cotton sleeping bag delivers luxury comfort at a family-friendly price. Premium YKK 2-way zipper ensures lasting quality. Safe & Certified for Baby – The Merino wool lining is OEKO-TEX Standard 100 certified, guaranteeing it is free from harmful substances. Hypoallergenic and gentle on delicate skin, this merino wool baby sleep sack meets US infant sleepwear safety standards. Year-Round Temperature Regulation – Natural merino wool sleep sack regulates body temperature, keeping baby warm in winter and cool in summer. Breathable and moisture-wicking for consistent all-season / year-round comfort. Adjustable Fit (2–24 Months) – One universal size grows with your child, replacing multiple smaller sleep bags. Adjustable under-arm snaps ensure a secure yet flexible fit, making this premium wool sleep sack a smart, long-term choice. Parent-Friendly & Easy Care – Double shoulder snaps and a YKK 2-way zipper simplify nighttime diaper changes. Closable seat-belt slots allow easy crib or stroller transfers. Machine washable and tumble dry on low heat, making it both practical and premium for busy parents.