Copo Trek Pivot

Swapping between the straw and chug pieces takes two seconds, and both seal tight enough that I tossed it in my bag without a drop leaking. It’s become my go-to for long drives since I can switch to chug mode when I’m thirsty and straw mode when I’m at my desk.

The two lid pieces snap on securely and swapping between straw and chug is genuinely easy. Keeps my iced coffee cold for hours without any leaks in my bag. Only small quibble is the lid can be a bit tough to twist off when it's really cold.

The lid design is clever, and swapping between the straw and chug pieces works smoothly. For a tumbler this size, though, I was expecting a bit better insulation—my drink goes lukewarm faster than my old one. It’s fine for short trips, just not exceptional.