BOROSIL VISION KATORIE / L

The larger Katorie glass holds a full 400ml without feeling top-heavy, and the clarity of the borosilicate is impressive—it’s my go-to for cold brew now. Slightly pricier than some plain tumblers, but the weight and clean lines make it worth it.

The 400ml size is perfect for my morning coffee, and the glass heats evenly in the microwave without any hot spots. Cleanup is a breeze since nothing sticks to the smooth surface.

The borosilicate glass feels incredibly solid and heavy in hand—perfectly balanced for a generous 400ml serving. I’ve been using it for hot tea, and the double-wall design keeps the outside cool while the drink stays piping hot.