Voyager Tumbler met doorzichtige flipdop en rietje

I'm on my second week of using it and my morning coffee is still hot by lunch, which never happens with my old mugs. The double-wall insulation really holds up, and having the extra straw in the lid means I don't have to wash one constantly.

The twist-on lid seals tight enough that I can toss it in my bag without a second thought, and the double-wall insulation actually keeps my iced drink cold through a whole afternoon of errands. The clear flip lid is a nice touch too, since I can see how much is left without opening it up.

Fits nicely in my car's cupholder and the double-wall insulation keeps my coffee hot for a couple hours. The twist-on lid does feel secure and leak-proof, though the flip mechanism could be a little smoother. Still, happy with the purchase.