Ti-Double M200 Stacking Mug

The double-wall insulation actually works—my coffee stays hot without the mug feeling too warm to hold. It's surprisingly lightweight for how solid it feels in hand.

I’ve been using this smallest stacking mug for my morning tea, and the double-wall insulation really keeps it warm without burning my hands. The Japanese titanium feels lighter than I expected but still sturdy.

The double-wall construction really works — my coffee stayed hot for over an hour without the outside getting warm. It's surprisingly lightweight for its sturdy feel, and the stacking design saves a ton of cabinet space.