18/8 stainless steel with double-wall insulation and Thermalock air gap keeps drinks hot for up to 22 hours and cold for up to 43 hours: It doesn’t matter whether you’re drinking beer or water.the Grand can handle both.

No leaks from lid when closed
Air-vacuum, double-wall Thermalock insulation keeps drinks cold for up to 43 hours and hot for up to 22 hours
Multi-purpose: Works with carbonated drinks
One-piece lid no loose parts that can
Easy opening, glove-friendly with textured grip
Durable, flexible TPU lid binding
Soft grip pad
Sturdy powder-coated finish
Completely dishwasher safe Doublewall
vacuum-insulated with 18/8 Stainless steel condenser
BPA free