保溫水瓶（500 ml）| 灰色

I’ve been using this bottle for my morning coffee and it’s still warm at lunchtime—definitely lives up to the 12-hour claim. The grey finish is sleek and doesn’t show fingerprints, which is a nice bonus.

Left this in my car all day in July heat and the water was still cold when I got back — the 12-16 hour cold claim actually holds up. The 500 ml size fits my cup holder perfectly too.

Filled it with ice water before a hike and there was still ice rattling around eight hours later. The 500 ml size fits my bag's side pocket perfectly, though I do wish it came in more colors than grey.