Polka Dot 2 Compartment Lunch Bag (L) Blue. Bring your lunch to school or work with this stylish polka dot insulated bag from Jacki Design. This bag is made with cotton and waterproof PVC coating. It has double compartments and a removable shoulder strap. Each bag is zipper sealed and easy to clean, comes in beautiful vibrant colors and polka dot pattern making mealtime super fun.