Cute and cozy sleeping bag. Perfect in your stroller. Very practical when the baby is asleep and you have to go out and do not have to put on an overall. And also when the baby falls asleep in the stroller outside and you want to go in and can easily unbutton without the baby waking up. 100% cotton inside sleeping sack, wrap whole body and also foot as a footmuff as well Thick and warm due to the thick material of cotton and the fleece. Our Cotton is extremely breathable and soft.