Abstract: A blanket formed from a main section and an auxiliary section sharing a common interface. The main section including a center section disposed between a pair of side panels that extend beyond the auxiliary section and are foldable inward toward the center section. In a fully stored rolled up state a storage flap keeps the blanket compactly secured and portable. The blanket is installed on the infant seat carrier by passing a safety strap in the auxiliary section through a loop of the safety harness between the infant's legs. While remaining installed on the infant carrier seat the blanket may be unrolled and unfolded to cover the infant. Without having to remove the blanket from the infant seat carrier or disturb an infant therein, the side panels may be folded inward and rolled up to a partially stored rolled up state beneath the infant's legs.