Meily(TM) Thermal Insulated Lunch Bag with Adjustable Closure, Coffee Material: Linen Cotton + Aluminum PackIt is a freezable lunch cooler designed to keep contents cooler, longer: up to 10 hours (depending on external temperatures) Features a patented freezable gel permanently built into liner, no need for ice or gel packs, simply fold your PackIt flat and freeze overnight Perfect for healthy foods: dairy, fruits and veggies stay fresh all day, reducing waste and saving money Keeps lunch cool and fresh until lunch time