Convert any mug to a travel mug! 

Conveniently bring your own mug anywhere you go! Use PortaVia on the mugs and cups you may already have and help reduce single-use waste!PortaVia fits down inside the mug or cup creating a reliable seal against the walls of the container, allowing it to be taken safely to-go. Cheers!

Fits mugs and cups from 2 7/8" to 3 1/4" (72mm-82mm)