"Best tumblr I have, out of many!

I love that the lid actually seals properly, I don't have any worry about leaks and the lid fits snuggly on the bottom when I don't need it. Also is great at keeping my drinks the proper temp for a long while."

–Justin

Sip & Stow Double Lid System

Smooth-action, 100% leak proof upper steel lid magnetically stows while you sip, doubles as a stable coaster. Patent-pending. Also, the inner lid, made from premium Tritan polymer, is designed for the perfect sip; updated with a torque grip for easy removal.

3-Way Insulation

This is more than vacuum-sealed insulation. SMMT Serpa Tumblers provided 3 distinct methods to keep your drink at the perfect temp.

01 Lateral double-wall insulation uses 2-layers of vacuum-sealed kitchen-grade stainless steel to block temp escape

02 Our patent-pending double lid system prevents temp loss from the top.

03 Base-up surface separation, the nesting-cavity in the tumbler’s base provides a conduction barrier from temp escaping into the ground, where significant energy exchange occurs.