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The unofficial oral fixation of Gen Z? According to TikTok, that would be Stanley Tumblers.

Stanley Tumblers have long been loved, but in the last couple of years, that admiration has skyrocketed into a full-blown obsession. Now, just ahead of October Prime Day, they’re 40% off — including a rare, shimmering petal shade that’s sure to make a perfect holiday gift for someone who needs one of the famously dubbed “emotional support waterbottles.”

On social media, swarms of users are filmed carrying their Stanley’s everywhere, with one person calling them a “cult-identification device” and others saying they can’t leave the house without clinging to one. One viral video even shows a bridge nervously chugging from her tumbler before a big day. For many, these 40-ounce tumblers are practically a lifeline.

Leak-resistant, straw-friendly, and ultra-durable, Stanley Quencher Tumblers keep drinks cold for up to 11 hours, providing satisfying sips all day long. Plus, they come in a range of trendy colors, and can be further customized with straws, stickers, and even convenient carry bags.

A Stanley is no longer just a hydration device; it’s a reflection of personality. With 40% off before Prime Day, it’s hard not to snag one and find out what all the fuss is about yourself.

Meet your new emotional support water bottle: the Stanley Quencher H2.0 Tumbler with Handle and Straw. Built for all-day hydration, this tumbler keeps your drinks ice-cold for over 11 hours and features a comfy handle plus a leak-resistant straw for effortless sipping on the go. Durable, stylish, and reliable, this tumbler won’t ever leave your side — or your feed.

Prime Day is Amazon’s biggest sale of the year, offering deep discounts on bestsellers and everyday essentials. This year’s event runs from Tuesday, June 23 at 3 a.m. ET through Saturday, June 27at 3 a.m. ET.

This year, shoppers can take advantage of four days of Prime Day deals: Tuesday, June 23 at 3 a.m. ET through Saturday, June 27at 3 a.m. ET.

In addition to pushing up the sale to June, Amazon is including several new programs and promotions, including:

Prime Day and all its amazing discounts are exclusively available to Prime members. However interested shoppers can grab a 30-day free trial to try Prime, and its many benefits with no strings attached, and gain access to exclusive deals and the convenience of fast, free shipping.

From reporting on Amazon sales for years, we can tell you for certain that Prime Day is the ideal time to stock up on beauty and skincare staples, score big-ticket tech for less, bestselling vacuums, and comb through the massive catalog of Amazon best-sellers. Plus, since this year’s sale runs before the Fourth of July Americana-themed deals and summer hosting essentials.

We certainly think so! Prime Day is a great chance to score deals on thousands of best-sellers, top tech and appliances and every day essentials. Our team diligently sorts through all the offers to find you only the very best items to grab on sale.

Already wondering when Amazon’s next Prime Day is? We expect Amazon’s October Prime Big Deal Days sale event to return in fall 2026. Follow Post Wanted’s around-the-clock coverage, and you’ll be the first to know about headline-worthy sales. Click here to find all of the best deals.

For over 200 years, the New York Post has been America’s go-to source for bold news, engaging stories, in-depth reporting, and now, insightful shopping guidance. We’re not just thorough reporters – we sift through mountains of information, test and compare products, and consult experts on any topics we aren’t already schooled specialists in to deliver useful, realistic product recommendations based on our extensive and hands-on analysis. Here at The Post, we’re known for being brutally honest – we clearly label partnership content, and whether we receive anything from affiliate links, so you always know where we stand. We routinely update content to reflect current research and expert advice, provide context (and wit) and ensure our links work. Please note that deals can expire, and all prices are subject to change.