Copo ProTour Flip Straw Tumbler | 20 OZ - Stanley Create

The built-in straw is a game-changer for me—I can sip one-handed while driving without worrying about spills, and the 20oz size is perfect for my commute. The lid seals tight enough that I’ve tossed it in my bag sideways with no leaks yet.

The flip straw clicks into place with a satisfying snap, and I’ve tossed this in my bag sideways without a single drop leaking. It’s genuinely leakproof, and the 20oz size is perfect for my desk.

The flip-straw lid is the reason I grabbed this, and it’s actually leakproof—tossed it in my bag sideways and not a drop came out. The 20 oz size is perfect for my desk, and the straw pops up smooth every time.