1. EXCELLENT THERMAL INSULATED: lunch bag adopts three-layer heat insulation design: the outer layer is durable 300D Oxford cloth and polyester fiber, lining with thick food grade aluminum foil, and the middle layer is specially filled with 5mm thick insulating pearl foam. Our reusable lunch box can keep the food cold/hot/fresh for hours, which is perfect for on-the-go meals, picnics, road trips, beaches, as well as to have lunch in the office, outdoors! 2. LEAKPROOF & EASY TO CLEAN: The lunch bag is made of ultra-thick soft lining and hot-welded seams without any needle holes to prevent leakage. The lunch bag is easy to clean. If the sauce or Drinks spills inside, please wipe it off with a damp cloth or napkin. the adult lunch bag is dustproof, waterproof, durable and keep your food clean. 3. MULTI COMPARTMENTS & LARGE CAPACITY: These adult lunch bags (10 x 6.5 x 8 inchesis designed for maximum storage efficiency, 1 main zipper compartment provides you enough space for food, snacks, drinks etc, 1 front zipper pocket is designed to store keys, cards,napkins and phone chargers or store forks and spoons. 2 mesh pockets easy for water bottles are perfect for packing all food and snacks all day long. 4. CONVENIENT & PORTABLE: This reusable lunch bag has a firm handle and a removable and adjustable shoulder strap that can be adjusted from 15' to 27'. It can be easily carried with one hand, or it can be firmly tied to a backpack or briefcase. The modern and lightweight design is very suitable for women, men and adults. It can be used as a lunch bag, insulation bag, picnic bag, food container, sundries bag or shopping bag.