Fabric Content: 95% Viscose (from Bamboo), 5% Elastane 𝐑𝐈𝐆𝐇𝐓 𝐒𝐈𝐙𝐄 = 𝐁𝐄𝐓𝐓𝐄𝐑 𝐒𝐋𝐄𝐄𝐏: Choose the size M (MEDIUM) Baby transition bag made for 13 – 19 lbs. Tap the size chart to confirm weight and height, then buy with confidence. The right weight based fit keeps this arms up newborn swaddle snug at the shoulders while hips stay free, stops fabric creeping over faces, reduces returns, and lets every tired parent enjoy longer, comfortable sleep night after night. 𝐇𝐞𝐥𝐩𝐬 𝐊𝐞𝐞𝐩 𝐁𝐚𝐛𝐲 𝐒𝐞𝐭𝐭𝐥𝐞𝐝: Our Swaddle Up Transition Bag has zip-off wings to allow one free arm during the transition from baby swaddle to arms free sleep. Once both wings are removed, the Swaddle Up transition sleep sack helps your baby gently transition from swaddling to arms-free sleep without losing the comfort of being swaddled. 𝐇𝐢𝐩 𝐇𝐞𝐚𝐥𝐭𝐡𝐲, 𝐒𝐚𝐟𝐞𝐫 𝐒𝐥𝐞𝐞𝐩: Our transition baby sleeping bag design offers ample space for hip and leg flexion, and is recognized by the International Hip Dysplasia Institute. With no loose layers to kick off during sleep, it's a safer alternative to a baby blanket 𝐋𝐢𝐠𝐡𝐭 𝐖𝐞𝐢𝐠𝐡𝐭 𝐒𝐥𝐞𝐞𝐩 𝐒𝐚𝐜𝐤 𝟑-𝟔 𝐌𝐨𝐧𝐭𝐡𝐬: This 1.0 TOG viscose sleep sack is ideal for MODERATE room temperatures between 68°F & 75°F. Swaddle quickly in seconds with the twin zipper, for quick and easy diaper changes, even in the middle of the night 𝐖𝐡𝐲 𝐂𝐡𝐨𝐨𝐬𝐞 𝐋𝐨𝐯𝐞 𝐓𝐨 𝐃𝐫𝐞𝐚𝐦? All our products are specially designed for different room temps & seasons to reduce the risk of overheating. Our products are made to the highest quality standards, are performance tested and certified by the relevant safety standards Love To Dream Swaddle UP Transition Bag. Once your baby starts to show signs of rolling, it's time to stop swaddling and transition them to arms free sleep. Our unique Swaddle Up Transition Bag is an easy way manage this change, while helping to maintain an established sleep routine. Specially designed to provide the secure feeling of a swaddle, while the zip-off wings allow a gentler and gradual move to arms-free sleeping. Designed to Preserve Sleep Routine & Keeps Baby Settled. Our uniquely designed zip-off wings allow for one arm to be free & the other swaddled, maintaining that familiar swaddled feeling. After a few nights, simply remove the remaining wing so both arms are free. This is an easy way to achieving arms free sleep while helping to preserve an established sleep routine. Once both wings are removed, continue to use as a sleeping bag providing the snug feeling baby is used to for longer-lasting use. Arms-Free also allows older babies to push up or reposition when they roll over