1. THERMOS® double wall vacuum insulation for maximum temperature retention
2. Two (2) years warranty
3. Durable 304 stainless steel interior and exterior withstand the demands of everyday use

Comes with two interchangeable lids - A Straw Lid for easy sipping and a Twist Lid that is spill-proof!
*Straw Lid: Not for use with hot liquids to prevent scalding.