If you’re looking for the ice retention and gorgeous design of a Stanley cup, but crave the practicality of a more traditional water bottle — meet the Stanley Quencher tumbler with the ProTour flip straw lid. It’s a leakproof option that reviewers love for throwing in backpacks and gym bags, sending to school with kids and teens and taking in the car. And today, select colors and sizes are discounted in a rare sale at REI and Amazon.

But if you want one, you’ve got to move fast. Lest we forget, the Stanley Quencher is break-the-Internet famous. Just a few years ago, the cup boasted a 150,000-person waitlist. A deal like this is sure to go fast.

The major attraction — and the magic behind its leakproof capabilities — is the retractable straw.

Users say it’s easy to pop up and down, even for kiddos, and is entirely leakproof when folded down. The wide opening lets you easily scrub the whole interior, though the double-walled vacuum-insulated stainless steel cup and lid are both dishwasher safe.

The brand says the cup can keep drinks cold for up to nine hours or 40 hours when iced, with many reviewers confirming the hype. “I have tried other products that say ‘keeps drinks cool’ but this is the first one I feel does!” one wrote. There was even a 2023 news story about a car being on fire and the cup surviving.