These bags are just like my other lunch bags – lovely designer prints, high quality cotton, food safe water-resistant lining made from superior quality ripstop nylon, but they have the added ingredient of Pellon Insul-fleece.
Insul fleece- Metalized Mylar is layered between polyester fleece to create a high-quality barrier that reflects heat or cold. They keep yoghurt and drinks cold and deli food warm. This special combination is very flexible , and will withstand repeated washing.
It works really well. The bags are still lightweight, foldable and washable.
There are lots of super prints to choose from, and you can also have my other bags made with this lining if you like.