Fill it once. That's the whole idea. 1200 ml gets you through a morning of classes or meetings, an afternoon at the desk and a session at the gym without a single trip to the water cooler. The handle means it hangs off one finger; the straw means you actually drink it instead of leaving it capped on the table.
Double wall vacuum insulated 304 stainless steel — chai stays hot for eight hours, ice water stays cold for eight. Leak-proof lid, so it goes in the gym bag lid-down and nothing happens.
