LONG-TERM PRESERVATION : The interior aluminum foil layer and middle layer insulation EPE keeps the food warm/cold for hours .The insulated lunch bag keeps the food and drinks fresh and preserve the temperature inside bag. FASHIONABLE DESIGN: This insulated lunch bag has simple and high-quality design with strong waterproof Oxford fabric, strong handles, adjustable shoulder strap, and extra front pocket. So, this insulated lunch bag looks elegant and simple in appearance, is easy to carry, is easy to open and close, gives space to keep your things like mobile, keyrings, etc. in its pocket. Xample Thermal Insulated Lunch Bag Cool Bag Picnic Adult Kids Food Storage Lunch Box UK in Grey