p>This ultra-durable lunch box collection adds a sense of style to kids’ meals away from home. Easier to tote than plastic or metal lunch boxes, our reusable lunch boxes boast lovable patterns and are designed to keep food cool and contained. This smart collection is sized to hold our food storage containers and features a water-resistant polyester exterior crafted from recycled plastic bottles, an easy-to-clean molded interior and straps on the back that easily attach to our Mackenzie backpacks. DETAILS THAT MATTER Shell is woven of tough, water-resistant 600-denier 100% RPET polyester. The Classic lunch box features a molded interior so it’s easy to clean. Classic lunch box’s YKK zippered mesh pocket inside holds napkin and utensils (not included). Interior lining is made of PEVA, an environmentally friendly, food-safe vinyl that’s made without chlorine or plasticizers. Our Cold Pack Lunch Box features a nesting ice pack can be used as a divider for the main compartment. Our glow-in-the-dark lunch boxes features a material that needs to “charge” under bright light for approximately half an hour to glow properly. Glow lasts for approximately 3 to 4 hours. The Glow effect will become weaker over time.