The Kulflo 700ml has a double wall Stainless Steel construction to keep water cold for up to 24 hours, or hot for up to 12 hours.  The 18/8 Stainless steel is 100% BPA free, non-toxic and rust-resistant.  The wide mouth makes it easy to clean and fill with ice.  The bottle comes with a straw lid and easy grip cap.  The silicon base protects against bumps and dings.
Includes two caps plus extra straw
Vacuum Insulated double wall
18/8 Stainless Steel 
Coated in a durable finish
Protective Silicon base