Feature:1. High-density Oxford fabric, surface water-resistant process, protects your items.2. The lining is made of insulating aluminum foil material, which keeps warm and cool for a long time, ensuring the freshness of food.3. Large capacity design, spacious interior, all kinds of fruits and drinks can be easily stored.4. Multi-layered for reasonable storage, external multi-layer storage bag, convenient for item classification and easy to take.5. Comfortable and pressure-reducing backpack, the shoulder strap is thickened with breathable mesh fabric, easy to carry, and relieves fatigue.Specification:This backpack with lunch compartment, with its unique design and comprehensive functions, is the ideal choice for outdoor activities. It not only has a water-resistant function, but also has an insulating aluminum foil lining, which can keep warm and cool for a long time, ensuring the freshness of food.Features:High-density Oxford fabric, surface water-resistant process, protects your items.The lining is made of insulating aluminum foil material, which keeps warm and cool for a long time, ensuring the freshness of food.Large capacity design, spacious interior, all kinds of fruits and drinks can be easily stored.Multi-layered for reasonable storage, external multi-layer storage bag, convenient for item classification and easy to take.Comfortable and pressure-reducing backpack, the shoulder strap is thickened with breathable mesh fabric, easy to carry, and relieves fatigue.Specifications: Material: High-density Oxford cloth + Insulating aluminum foil Color: black, Blue, Dark gray, Light gray (Optional)Size: 32 x 46 x 19cm / 12.6 x 18.1 x 7.5in Weight: 650g / 22.9ozPackage list: 1 x BackpackPackage List:1 x Backpack