16 oz Sirus Vacuum Tumbler

Deep draw liner for a more permanent vacuum insulation.

Patented

Vacuum insulation provides optimum heat retention at least 10X longer.

Will hold your beverage at the ideal drinking temperature at least 10X longer.

Features lip and finger grooves that allow you to position the drinking spout without even looking.

Includes a leak proof screw on lid with a visual open/close push button locking closure.

Lid can come apart for easy cleaning.