An insulated lunch bag measuring 10.5” x 8.5” x 2.5” is the perfect slim, low-profile carrying sleeve specifically tailored for standard flat-lay stainless steel bento boxes This specific 2.5-inch depth keeps the bento container securely upright, preventing internal food items from shifting or mixing during transport. Key Benefits of a 2.5" Deep Bento Bag • Prevents Flavor Leaks: Keeps the multi-compartment tray perfectly horizontal so juices cannot bleed between sections. • Space Efficiency: Easily slides into a standard backpack alongside books or a laptop without causing a bulge. • Temperature Retention: The snug fit minimizes empty air pockets inside the bag, maximizing the efficiency of your ice pack