Good quality. I expect them to last a long time. Used them on a month-long trip to New Zealand and Australia in place of my usual plastic food storage bags. They probably take up a little more space than the food bags - but they are much more durable and don't get accidentally thrown away. I wear a ladies' 7. I could fit a pair of shoes in a bag if they were sandals. I needed one bag per shoe for my running shoes. I will be getting another set.