100% Cotton Imported Made of 100% ORGANIC COTTON, our baby sleep sacks are perfect for warmer nights or nurseries with room temperatures 70-80F. Available in three sizes: 0-6, 6-18, and 18-36 months. BUTTERY SOFT AND PURE - Made of 100% GOTS certified organic cotton that is incredibly soft and cuddly - perfect for your delicate baby’s skin. SAFE AND SECURE - This baby sleeping bag is designed to replace loose blankets in the crib, ensuring a safe and cozy sleep environment for your little one for longer, sounder nights of sleep. 2-WAY ZIPPER unzips from top and bottom for easy dressing and quick diaper changes. The interior zipper guard and top zipper cover protect baby's delicate skin. PREMIUM QUALITY - Buy with confidence from Woolino, a trusted US company, offering US customer service and industry leading warranty for your peace of mind. The industry leader in merino wool baby sleep sacks and essentials since 2010.