Exterior: 100% Polyester, Interior: 100% PevaImportedThis fully freezable Lunch Box is the first and only lunchbox with PackIt's groundbreaking built-in cooling. Freezable non-toxic gel is built permanently into the walls of each bag, to keep food and drinks chilled for hours. It totally eliminates the need for separate blue ice packs or gel packs!Simple to use: empty, collapse and freeze the entire lunchbox overnight (12 hours). By morning, the walls of the bag will be completely frozen and ready to chill. This lunchbox keeps food cooler longer, which means you can pack healthier foods that would spoil in other lunch boxes such as: dairy, deli meats, salads, fruits and veggiesLarge zip opening allows for faster top-load packing and locks in cool, dry air. A buckle handle conveniently lets you attach this lunch box to backpacks, messenger bags, sports bags and more. An exterior zip pocket stores lunchbox notes, ID cards, napkins or wipesThis lunch box is made from nontoxic gel and gel liner. Like all PackIt products, the Classic Freezable Lunchbox is made from PVC free, BPA free, phthalate, and lead free (UL #B80321985, 12/5/2019) materialsPackIt's Classic Freezable Lunch Box measures 8.25 inches tall standing upright, 10 inches wide from side to side and 4.25 inches front to back/deep. Easy to clean: interior wipes clean, spot clean exteriorProudly made by PackIt: creator of the ORIGINAL foldable, freezable lunch bag. Designed in California The old-school lunchbox is getting PackIt's cool twist! PackIt's Fully Freezable Lunch Box is the only lunchbox with built-in cooling that chills food and drinks for hours. The secret is PackIt's groundbreaking technology: a freezable non-toxic gel liner is integrated into the walls of the lunch box. The design totally eliminates the need for separate ice packs or gel packs! To use, simply flatten the lunch box and place it in the freezer overnight (12 hours for optimal results). In the morning, the walls of the lunch box will be completely frozen and ready to chill. With fully frozen walls, this lunchbox keeps food cooler longer, which means you can pack healthier foods that would spoil in other lunch boxes such as: dairy, deli meats, salads, fruits and veggies. The Classic Freezable Lunch Box by PackIt easily fits an entire meal and a 12 ounce (340ml) drink. A top-load design makes this lunch box simple to pack, and its kid-friendly zipper closure locks in cold, dry air. A slim exterior zip pocket is perfect for lunchbox notes, ID cards, napkins or wipes. A buckle handle lets you clip the lunchbox onto totes, backpacks or sports bags. PackIt's Classic Lunchbox is made with nontoxic gel and gel liner. Like all PackIt products, the Classic Lunchbox is made from PVC free, BPA free, phthalate, and lead free (UL #B80321985, 12/5/2019) materials. Care: wipe thoroughly or hand wash the interior and spot clean exterior; allow bag to dry completely before freezing. Not machine or dishwasher safe. PackIt's Classic Freezable Lunch Box measures 8.25 inches tall standing upright, 10 inches wide from side to side and 4.25 inches front to back/deep. When collapsed for freezing, it measures a slim 8.5 by 10 by 2.25 inches for easy storage in the freezer.