The Leakproof 40-Ounce Stanley Quencher Is 25% Off Ahead Of October Prime Day
Stanley fans, you don’t have to wait for Prime Big Deal Days to grab a cup for less.
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, Amazon has its 40-ounce version on sale for the first time ever just weeks ahead of Prime Big Deal Days (which is October 7 and 8, by the way).
Right now, you can take 25% off any of Stanley’s 40-ounce Quencher cups available in its “fade” colorways. (Because Amazon doesn’t mark the sale colors as clear, we’ll tell you it’s azure fade, rose quartz fade, frost fade, black fade, and hot coral fade.) But if you want one at a discount, you’ve got to move fast. The last time the price dropped on these, they didn’t last. Lest we forget, the Stanley Quencher is break-the-Internet famous. Just a few years ago, the cup boasted a 150,000-person waitlist.
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It’s dishwasher-safe, easy to pop open and wholly leakproof.
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.
It keeps drinks hot and cold for a long time.
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.
One happy reviewer calls this option the “perfect blend of style and performance!” that keeps drinks cold, fits in car cup holders, has a handle and won’t leak or spill.
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Want to know more about the no-leak Stanley Quencher? Trust us, there is no shortage of 5-star reviews.
“This Stanley is AWESOME! The Vivid Violet Fade is even more beautiful in person, and I get compliments on it everywhere I go. The flip straw design is completely leakproof, which makes it perfect for tossing in my bag or taking it in the car. It fits in every cup holder I’ve tried and keeps my drinks cold all day long.
The built-in handle makes it easy to carry, and the stainless steel quality is top-tier. I’ve owned a lot of tumblers but nothing compares to this one. It’s stylish, functional, and incredibly durable. Honestly, once you try this cup, you won’t want to use anything else. Highly recommend!” — Flowers to Fashion
“This Stanley tumbler is bright, sturdy, and extremely well-designed. The insulation works great—it keeps drinks cold for hours and does just as well with hot beverages. The built-in straw and handle make it very convenient for everyday use or travel, and the 40 oz size is perfect for staying hydrated throughout the day.
The leakproof lid gives extra confidence when carrying it around, and the design fits well in standard cup holders despite the large capacity. The Goldenrod Fade finish looks fantastic and stands out from typical stainless steel tumblers.
A reliable, high-quality tumbler that combines style, function, and durability.” — Jbycz
“I’m genuinely impressed by the Stanley Quencher ProTour Tumbler. The vivid violet fade is absolutely stunning—eye-catching without being over the top. The flip straw lid is a game-changer: it’s truly leakproof, making it perfect for tossing into my bag without worry. I love how the double-wall insulation keeps my drinks ice-cold for hours, even in the Caribbean heat! The comfort-grip handle and cup-holder-friendly base make it super convenient for travel, work, or workouts. Plus, knowing it’s made from recycled stainless steel and BPA-free materials adds peace of mind. Durable, functional, and beautiful—this tumbler checks every box.” — Ava Francis
To keep your new Stanley spick and span, check out this list of the best bottle brushes to clean reusable water bottles by Lourdes Avila Uribe.
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The Real Deal: We use deal trackers and commerce experience to sift through “fake” hike-and-drop deals and other deceptive sales tactics. Products will usually be rated at least 4 stars with a minimum 15% discount. (And when there’s an exception, we’ll tell you why.)
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