• Long-Term Preservation: The backpack coolers insulated leak proof keeps food cold or hot for up to 6-8 hours with four layers of high-grade insulation. This large backpack cooler are suitable for outdoor, work, camping, picnic, beach or other occasions
• Large Capacity & Multi-Function: The tactical lunch backpack size is 13" x 9" x 19" (L*W*H), 25 L capacity, spacious enough to hold 36 cans of beer (330 ml). Two mesh side pockets can hold your water bottle and a front pocket for your pens, keys, wallet
• Durable and 100% Leak-Proof: This cooler backpack insulated waterproof features water-resistant Oxford fabric, premium YKK zippers, double-stitched straps and handles, and a 100% leak-proof ultra-thick soft PEVA lining, ensuring long-lasting performance
• Excellent Design: The insulated cooler backpack has a large air hole liner for increased comfort and breathability. The adjustable fastener and wider shoulder strap can reduce load-bearing. Take lunch box backpack for men women for more fun to your lunch
• Effortless Maintenance: Dust-proof and easy to clean with a simple wipe; Do not put your large cooler bag in the washing machine. Store the backpack waterproof in a dry, cool place when not in use