Stainless Steel 

Keeps drinks cold for 24 hours or hot for 12 hours! 

• BPA and lead free
• Food grade 18/8 Stainless Steel doesn't leach or retain flavors
• Double layer Stainless Steel Vacuum enhanced with a copper lining to maximize heat and cold retention performance. 
• Balanced swing top lid keeps liquids secure and stays put while you sip
• Non-slip bottom prevents spills
• Cap loop for ease of carrying or use with carabiner. Fits ice cubes!
• Hand Wash Only