Each bag holds what two plastic bags could. You can order a pouch with five bags rolled up into it, making it super portable. I like that I can do a little something to be more green when I shop; my sister only uses reusable bags and tells me I need to as well!
The website has a bunch of designs, but at the time I wasn't really into any of them. I wanted a set where I liked each and every bag design, because I'm picky like that. So I turned to Amazon and found a set I loved, Bloom.
As an example, I did my normal grocery load, which the baggers always place in 8-10 plastic bags. (I would use 4-5 in self checkout.) Well, that amount fit into TWO of these bags! I love it. Makes so much more sense to carry these instead of using plastic. I'm a convert.