Vatna Water Bottles Insulated Double Wall Vacuum Stainless Steel Cola Water Bottle,Keep Drinks Hot or Cold More Than 12 H,350 ml/13 oz Double wall 18/8 stainless steel water bottle with vacuum insulation. Keeps hot beverages hot for up to 12 hours and cold for 26 hours. Wide mouth allows for ice cubes and easy drinking. Super Lightweight and Durable. Easy to carry and fits in most car cup holders.