WHY IS COTTON MUSLIN A GOOD CHOICE? Made of 100% Organic Cotton ,0.5 Tog Muslin Cotton,2 Layers Muslin.Completely close to the baby's skin,soft,lightweight ,wear-resisting,absorb sweat and breathable, gets softer with every washing.Safe and healthy ,no pollution,no skin stimulation,not easy to have allergy. WHY DO YOU CHOOSE TADO MUSLIN? 1.Easy To Use Easy to wear,Easy to Change Diapers.While your baby is sleeping ,don?t worry about disturbing him. 2.Perfect Size Only for the healthy growth of your baby.Our sleeping bag don?t restrict baby?s movement freely.We have four sizes: 70# Clothes Length 70cm, Baby Rise Height22"-26",Age 3-6 Months 80# Clothes Length 80cm, Baby Rise Height26"-30",Age 6-12 Months 90# Clothes Length 90cm, Baby Rise Height30"-34",Age 12-24 Months 100# Clothes Length 100cm, Baby Rise Height34"-38",Age 2-4 Years 3.Replace traditional blanket and sheet No additional covers are required when you use our sleeping bag.Our sleeping bags eliminate the problem of your baby kicking off their covers.Prolonging sleep time,constant temperature overnight. Double Ways Zipper With Safety Tab: The design of two-way zipper makes diaper change easier. The unique inner lining design prevents the zipper from squeezing into the baby's skin during the operation of the zipper. You can quietly change his diaper while the baby is sleeping without disturbing his sleep. 4.LOOSE DESIGN AT THE BOTTOM The widened design at the bottom of the sack makes the baby's activities more free.So your baby stays warm all night. When your little one is awake,our sleeping bag can provide greater mobility for your baby. HOW TO CARE COTTON MUSLIN? Hand wash recommended.Wash with warm water below 40?.Not chlorine bleaching.