The Amuse Zero Waste lunchbox is made of 100% recycled plastic, from Amuse's own production waste. Due to the use of recycled materials, the colour of each lunchbox may vary slightly. The lunchbox is BPA-free and 100% certified food-safe. To make sure the lunchbox does not open in your bag, an elastic band is used, but this is a sustainable solution. The elastic is made from recycled jeans. In short, you are certainly doing your bit for a better world with this lunchbox! The Amuse Zero Waste Lunchbox can be personalised with a thermal print on the elastic. The lunchbox is dishwasher and microwave safe.