Food Grade & Insulated Material: The reusable lunch boxes are made with pearl cotton and aluminum foil, which is known for its excellent air insulation and temperature retention, keeping your food hot/cold for hours. Tight seams without tears, durable and strong. It can keep your food hot or cold for hours. The 100% cotton outer layer provides comfort to your skin. LIGHT AS A FEATHER AND DECENT CAPACITY - Our small lunch boxes for women weighs only 0.3lbs, which is barely noticeable to holding while empty. Large enough for all day dining. With a size of 10.24"H x 9.4"L x 6.7"W, our lunch box fits your daily meals and snacks for kids and adults. WIDE OPENING AND VELCRO CLOSURE: The insulated lunch box entrance can open up to a size of 9.4"L x 6.7"W. Therefore, your containers can be placed in and out of the bag HORIZONTALLY without the risk of leaks or spills. The hook-and-loop closure not only makes it easy to access the food, but also secures it firmly in the lunch box. DIRT-PROOF AND FOLDABLE: The interior is water and grease repellent, so a simple wipe with a damp cloth could easily clean the lunch box and leave no odor. This lunch box can be folded to the size of a notebook, which makes it convenient to store. PERFECT GIFTS CHOICE AND SATISFACTORY CUSTOMER SERVICE: The reusable lunch box is a perfect gift for Christmas, gift exchange. Food Grade & Insulated Material DIRT-PROOF AND FOLDABLE PERFECT GIFT