20 oz slim matte black tumbler

High vacuum surface so there is no room between the walls of stainless steel, minimizing the flow of air and heat.

The temperature of the fluid does not affect the outside of the cup when a hot liquid is added. There is no condensation and the cup wall stays dry.

The stainless steel's internal wall uses mirror engineering to reduce heat radiation.

The lid adds an additional protective barrier to keep enclosed beverages and avoid the escape of heat or cold.

Size: 8"x 2.5"

Hot drinks stay cold for 6 hours.

Cold drinks remain cold for 12 hours.

BPA-free

Highly resistant to rust and corrosion