Personalised Any Name Bamboo Water Bottle Gift Eco-friendly 450ml water bottle made with sustainably farmed bamboo and stainless steel. It has a double walled inside which keeps drinks ice cold for up to 4 hours. To keep the bottle looking it?s best for many years to come, it is recommend that you wash it by hand. Please State the following: 1. Name This can be left during checkout, though if missed can be mailed to us through your completed order.