- Premium material and insulation: The insulated lunch bag is built with durable 600D Oxford cloth, a food grade PEVA lining, and sturdy zippers. The middle layer is specially filled with 4mm thick insulating pearl foam to provide excellent insulation and keep your food and drinks warm. - Spacious and organized capacity: Measures 28 x 20.5 x 10 cm (11 x 8 x 3.9 in). The interior space is sufficient for an adult lunch, snacks, and juice boxes. Dual smooth zippers enable easy loading and unloading. The front zip pocket holds a cell phone, charger, keys, napkins, or utensils. - Comfortable and versatile carry: Features a firm handle and a removable, adjustable shoulder strap. Carry with one hand or attach to a backpack or briefcase. The modern, lightweight design is suitable for both students and adults. - Easy to clean and reliable: Waterproof and leak-proof construction. The inside uses thermal insulation pearl cotton and aluminum film and is easy to wipe clean. If sauce spills inside, simply wipe with a damp cloth or napkin for quick cleanup. - Practical use scenarios: - Office or school day: keeps lunch, snacks, and a juice box warm while you move between classes or meetings. - Outdoor activities: great for picnics, road trips, or gym trips where you want to transport meals and drinkable items. - Commute and travel: attaches to backpacks or briefcases for easy carrying during commutes while keeping meals fresh.