Color: Blue (ADMIRAL BLUE) This is an accessory that came with the Ergobaby baby carrier I purchased. (The box is large, so it's not included. Please inquire if you want it.) It costs 2,200 yen + shipping if purchased new. This is a baby waist belt recommended for use during the newborn period and for babies of low age, and it is a safety belt to prevent the baby from falling. I think I tried it once, and then I stored it and forgot about it, so it's almost new.