This is a BABYBJORN back-carrying baby carrier made of breathable mesh material. - Brand: BABYBJORN - Color: Gray - Accessories: Box, Instruction manual - Material: Mesh - Design: Back-carrying type Thank you for viewing. Purchased in March 2023. I am selling it because my daughter has outgrown the baby carrier. I used it almost every day. There are no stains, but there is some slight pilling (see photos 2 and 4). User registration has not been done, so the registration number can be used as is. The 2-year warranty from the date of purchase has expired.