HIGH QUALITY MATERIAL Aluminum foil keeps food fresh for about four hours. Made from BPA-free materials, it's non-toxic and safe for your food. GOOD MATERIALS This office lunch cooler bag is made of high density 600D Oxford fabric outside, with 5mm pearl cotton layer in the middle and foil insulation aluminum sewn inside. The three layers inside and out will keep your food better insulated and fresher, making it a good choice for packing office lunches as well as school lunches. EASY TO CLEAN The interior is made of thickened aluminum foil and is stain resistant, so if you accidentally spill soup inside, it just wipe it gently with a paper towel or cloth. STURDY CARRYING HANDLE Soft padded handle, comfortable and convenient to carry and hold. Tight seams are durable as they won't crack easily even if you fill the lunch cooler bag to the brim. MULTI-PURPOSE The thermal food bag is here to make your life more convenient and help you enjoy healthy and delicious meals. enjoy your healthy