二重壁マグ

I keep one on my desk for tea and one in the kitchen for iced coffee—the glass is thick enough that the cold never sweats onto the counter. The clear walls show off the drink’s color nicely, and my hands never feel the burn when I grab it mid-sip.

The exterior stays perfectly cool to the touch even with boiling coffee inside, which makes it my go-to for desk mornings. Watching the liquid float between the glass layers is oddly mesmerizing too.

I’m genuinely surprised how well it holds temperature—my coffee stayed steaming for over an hour while the outside stayed perfectly cool to the touch. The double wall design is the real deal, and it looks sharp on my desk without any awkward bulk.