Durable Material: The exterior of the lunch bag is made of waterproof Oxford fabric, which is durable and water-resistant. The interior of the lunch box is made of polyethylene vinyl acetate (PEVA) foil to keep your food cold/warm/fresh for several hours. Large Capacity: The lunch box (25.4 x 26.7 x 20.3 cm) is designed to maximize storage efficiency, with 26.7 cm upper and lower main zippered compartments, a 20.3 cm front zippered pocket, 2 front pockets, and 1 back pocket, as well as 1 mesh pocket. High-Quality Zipper: We use top-quality zippers, which are light and smooth without snagging, to minimize the risk of zipper breakage. Portable and Practical: The reusable lunch box features a reinforced handle on top and a detachable and adjustable shoulder strap to provide you with more carrying options. For More Occasions: The reusable lunch box for women/men can help you enjoy healthy food wherever you go, such as hiking, shopping, traveling, camping, at the gym, for lunch at work, picnics, school, beach, and fishing adventures, etc.