Unique and masterfully crafted. Ghongha water bottles are made from sustainable materials so they are highly reusable. Interestingly Ghongha bottles don't use any BPA materials (Bisphenol A plastic) This even includes the lid which some eco friendly bottles overlook. In case you are unaware of the issue with BPA in platics. The chemical is often found in plastic bottles and has been aligned to risk of cancer, diabetes and also obesity. By investing in a Ghongha water bottle you are making one significant step to helping the environment and your own health.