I received this as a gift, but I never had the chance to use it, so it's been stored at home. I'd like to pass it on to someone who will use it! There are no bags or instructions. A hip seat made of mesh material with excellent breathability. - Brand: Coperta - Color: Gray - Design: Hip Seat - Material: Mesh material - Features: Adjustable straps It seems the usage period is from when the baby can sit up to 20 kg. Thank you for looking.