After doing some extensive research the only thing eco-friendly about these bags is the recycled cardboard the box is made of they come in. The bags aren’t made from recycled plastic, they are not compostable, they are not biodegradable. I know they don’t made these claims but it’s trickery with marketing. My Alphapet poop bags are what you’re looking for. Made of cornstarch and biodegrade within a month. They even come scented if you desire. I live in SF and we do not use any plastic bags at all. So this probably bothers me more than most. But I’ve told all my friends with dog who were also shocked to find this out. They do make a biodegradable bag but it’s white and super expensive.