Handmade eco-friendly bag. It's a little smoother than typical sheeting. It might contain polyester. Although it's a thin fabric, it's sturdy, so I use a similar one of these every day for grocery shopping. The good thing about cloth eco-bags is that your hands don't hurt even when they get heavy, and if it gets dirty, you can wash it in the washing machine, reshape it, and hang it to dry. Because the fabric is thin, it folds up compactly and doesn't take up much space. Please check the size in photo 4. (There may be some slight variations) I've taken a photo with a thick bath towel inside, and there's still plenty of room. #chiyakkoecobag I have never formally studied sewing. This is made by an amateur as a hobby. Please also read my profile if you'd like. I've written about combined shipping discounts, etc.