Stroller sleeping bag

Warm winter sleeping bag for an infant. We used it when placing the baby in the stroller, and also, if necessary, for the car seat. Designed for ages 0-9 months. There's a stain inside that couldn't be washed out in the washing machine, but it's not visible when the sleeping bag is closed. https://www.lodger.com/en-lv/izp-rdo-ana/503,-44480/ietinam-sedzi-a