this shop just clicking around on Etsy (oh no, that's not a time sink...). I kept thinking I should try to make some, but (a) I didn't have all the supplies, (b) my un-done project list is way too long, and (c) the way these are made is beyond my present sewing skills. I finally just requested a custom set in greens and browns - my favorites! - and I'm so glad I did. They are working out really well.
I got one sandwich size and two snack size. They are cotton outside with a nylon lining inside and a full strip of velcro as a closure. The nylon is loose from the cotton so that it can be turned inside out and the velcro is sewn in very securely. There are several shops that sell this type of item, but I am really enjoying these!
I've been filling them with our little snack mix or crackers or sandwiches. When I use them for snack foods, I just shake out the crumbs and keep going. After a sandwhich, I either turn the nylon lining inside out and rinse it in the sink or run the whole thing through the washing mashine. In addition to being easy to use and reuse, I love that they are so easy for Zack to spot in our bag and close back up himself. And, really, seeing the fabrics makes me happy.