Polyester Lunch Bag, backtoschool easy opening floral design travel snack lunch food bag great for all agesWhether it's adults or kids, everyone loves having a customizable lunch bag that speaks of their personality especially when munching with company outside of the house. The water resistant shell features a unique shape that feels familiar and doesn't take up space. Each lunch bag comes with an easy to open magnetic closure to keep your food fresh & ready to eat. .: Exterior: 100% polyester .: Interior: 52% aluminum foil, 48% polyester .: Magnetic