Use these swaddle blankets for your newborn at home in the nursery, in the diaper bag when you're out, or in the stroller basket. They're great for babies aged 0 - 3 months (7 - 14 lbs) or 3 - 6 months (14 - 18 lbs). The Comfy Cubs swaddle blankets are made of 100% cotton, breathable, and thermo - regulating. They have a double - layer construction and anti - fray edge tape for durability, and sturdy hook - and - loop tabs for a secure fit.