This is a handmade drawstring bag. The height is just right for a 500ml plastic bottle to fit inside. A soft interfacing is used, giving it a gentle feel. Because it's a drawstring type, the contents are less likely to fall out. Perfect for a quick outing! It has a shoulder strap, so you can wear it diagonally or on your shoulder. The length of the strap can be adjusted by retying the string. When packing, I will fold it to reduce the thickness. The pattern uses a recipe from baby&kids.