The Nationwide Children's Hospital Columbus Marathon Pioneer Vacuum Bottle features a double walled stainless steel construction and vacuum insulation. 

• Bottle: Double-wall stainless steel 
• Lid: #5 PP plastic 
• Inner Straw: #5 PP plastic
• Insulation: Vacuum 
• Closure: Screw-on lid with flip up straw 
• Removable inner straw
• Capacity: 18 oz