Soft and breathable cotton fabric: Baby wearable blanket is made of super soft 100% cotton. Safe, soft, comfortable and skin-friendly. Sweat-absorbing and breathable wearable blankets keep toddlers comfortable without overheating. Easy to wash and dry, no need not worry about shrinkage and deformation after washing. The sleep sack with feet can make the baby in the learning stage of motor development more comfortable and flexible when they walking. Open widen legs design:The sleeping bag with sleeves are suitable for all seasons of spring, summer, autumn and winter. Open legs wearable blanket design,toddler can freely move around in the house. Easy to use: The baby wearable blanket with 2-way zipper that allows you to change your toddler's diaper without undressing. Toddler sleeping sack long sleeve with a chain guard patch to prevent infant from rubbing his chin. Note: Many mothers want to buy a larger size so that the baby can wear it for a longer period, but the sleeping bag is originally loose, so they will get an inappropriate size.