I purchased this about a year ago and used it a few times. It doesn't take up much space in a bag, and it's very convenient because you can wash it in the washing machine in a laundry net. The following is an excerpt from the official page: --------------------------- 1: Supports one-handed carrying of children from 1 year old (weighing 10kg) to 4 years old (weighing 18kg). Carrying a child over 10kg is difficult even with both hands. It's especially helpful when you have luggage or for mothers. 2: It folds up compactly and doesn't add to the burden of carrying it. It's small enough to carry in a bag, so it's perfect for when you need to carry your child. 3: When putting your child down, you can remove the buckle safely and easily. On the other hand, the buckle has a rubber to prevent it from coming off, preventing it from falling off while wearing. 4: You can easily put it on by yourself. 5: Machine washable. Materials ・Main fabric: 100% cotton ・Non-slip: 100% polyester (resin part is acrylic) ・Filling: 100% polyester Domit core ・Belt: 100% polypropylene ・Belt tie-off rubber: 80% rayon, 20% natural rubber ・Buckle: Polyacetal resin ・Buckle detachment prevention rubber: 100% polyester --------------------------- *Please refrain from purchasing if you are sensitive to used items due to my personal management. m(_ _)m