This is a small, foldable shoulder bag. It's convenient to use as an eco-bag when you unexpectedly buy too much! When my children were small, I used tote bag-type diaper bags for easy access to items, but when shopping and carrying more things, both hands would be occupied. Also, hanging them on the stroller would wear down the wheels. This bag was helpful in those situations. There is a faint stain in the second photo. Also, the inner fabric has frayed, so I sewed it back together once. I think shoulder-type eco-bags are rare, so I recommend it.