Your Nude Food Movers plastic container items are made from recyclable food-safe plastics: #5 Polypropylene. They also feature food safe rubber overmould parts, on the snack, food and sandwich box. The 500mL Smash bottle is made from #4 Low Density Polyethylene. All items are approved by Standards Australia, US FDA, and are lead, BPA and phthalate-free.