Think of the 7AM Car Seat Cocoon as a warm,cozy insulated cover for your baby’s car seat! It fits all car seat models seamlessly, slipping on and off in seconds and fitting snugly thanks to a simply designed elastic base, and it also fits perfectly on the Doona car seat stroller.The cocoon is placed over the entire car seat, like a cover, and secured with the elastic base. It has a zipper in the middle & side shoulder zippers so you can get your baby in and out of it easily.And though it’s resistant to both wind and rain, it’s ultra-lightweight and comfortable for your little one. This infant car seat cover is a timesaver, too. You won’t have to struggle with multiple layers of garments, just make sure your baby is well dressed in the car seat and the form-fitting car seat cocoon will shield from the harshest conditions, keeping baby cozy on winter walks.