This lunch bag is made of high-density, waterproof 600D Oxford cloth. The liner is made of insulating aluminum foil, which has excellent heat resistance, able to maintain food temperature (hot or cold) for hours. Every bag comes with a 53" long detachable shoulder strap, so you can carry it by hand or sling it crossbody conveniently. Multiple outer pockets provide extra room for drinks, cutlery, tissues and small personal items. Ideal for daily commuting to work, student school meals, family picnics, hiking, camping, travel and all kinds of outdoor activities. PMS available for product color and imprint. Overseas production. Lower quantity available. Includes ocean freight delivered to NY.