This grocery bag is durable with an interior of thick 3mm EPE insulation material. Its thermal insulation maintains the temperature of your food for hours. This insulated bag may also be used as a reusable shopping bag when you shop for frozen food, meat, fruit, vegetable, and dairy products to keep food fresh. Works as a food delivery bag or cooler bag as well to store BBQ food and cool drinks for camping or going on a picnic. Size of each bag: L: 15.8” x 12.9” x 12.9” (L x H x W) M: 11.5” x 9” x 8.5” (L x H x W) REUSABLE: maximizes the use of post-consumer material to make high-quality, sustainable grocery bags which saves plastic from ending up in oceans, lakes, and landfills. Keep our bag in your kitchen or trunk for convenience to help protect our environment and create a cleaner, more livable future. INSULATED: Triple-layer thermal insulation fabric design keeps your food warm or cool and always fresh. Great for frozen groceries, produce, and even hot food items. Can be used in place of your traditional cooler. LARGE CAPACITY: 15.8” x 12.9” x 12.9” (L x H x W). Spacious enough to fit a large amount of grocery items while shopping at the grocery store or farmers market, carrying multiple orders when delivering food, or taking plenty of food for picnics, camping, catering, beach days, tailgating, potlucks, or parties. HEAVY DUTY & DURABLE: Made from a high-quality, hardwearing, non-woven fabric material that is built to last. Sturdy and strong construction easily supports 45 lbs. Triple-layered, cross-stitched, reinforced handles designed to wrap around the bag for heavy loading without breaking or tearing. A reinforced, dual tab, smooth sliding, zippered lid keeps items from falling out. Easy to clean with wipes. FLEXIBLE: Flexible fabric sides accommodate bulky and odd shaped items. Collapsible and folds flat for future use and easy storage in your kitchen, under your car seat, or in your trunk.