These totes are made of a lightweight cotton, but seem sturdy enough to use for groceries or other shopping needs. I wouldn't try to carry a 24-pack of canned drinks in the bags, but for everyday shopping they're fine and can be folded into a small packet or stuffed in a purse. The seams are well sewn and the handles properly attached. I purchased them as a craft project for the local kids homework club where I tutor weekly. The kids are painting a design on one side, with the option to paint on the other side the following week.