1:Concise design style makes it welcomede by teenagers. 2:Large capacity makes it fit for long walk in the dry desert;long body makes it fit for bicycle and bag. 3:Quality assurance-Support the third party inspection & 100% non-defective product before shipment.Microbial resistant, recyclable ,non toxic, 100% leak-proof. 4:Dishwasher safe, food grade material HDPE with great , BPA- and phthalate-free. 5:Every process inspection to make sure good quality,no quality complaints from your customers!