• Stanley Quencher tumblers are on sale ahead for Amazon Prime Day.
  • Select styles and colors of the brand’s popular tumblers are on sale now.
  • Jennifer Garner previously told Prevention that she uses the 40-oz, “big, bad boy,” water bottle.

Summer is a time to pay extra attention to two things: sunscreen and hydration. And the Stanley Tumbler sale happening this Amazon Prime Day (today through July 17) can help you really hone in on the latter. The viral “Stanley cups,” or as Jennifer Garner calls her 40-oz the “big, bad boy” that keeps her fueled, are on sale right now.

Stanley The Quencher H2.0 Flowstate™ Tumbler

The Quencher H2.0 Flowstate™ Tumbler
Now 19% Off

Select colors and styles of the tumblers are on sale for Amazon Prime Day. The 30-ounce tumblers feature an ergonomic soft grip handle for easy holding and a narrow bottom that perfectly fits most car cup holders. Then, of course, there’s what most people love about their Stanleys—the splash-resistant straw that stays securely in the rotating FlowState lid, which boasts three modes: straw, sip, or covered—and the stainless steel insulation that keeps drinks ice cold. Unlike many other insulated cups and bottles, Stanleys are dishwasher safe and come with a lifetime warranty.

Garner may have received her Stanley as a gift, but she’s a full-on fan now. “My [Stanley] is white, it’s the big bad boy,” she previously told Prevention. “Whatever gets us drinking more water. It’s so important.” She added that her friend gave her the cup semi-jokingly when Stanley went viral and everyone had to have one. “I was like ‘What is going on you guys all have this thing?’” she said. “Now, of course, I am embarrassingly wandering around my house, jingle jingle with all of my ice inside. They are definitely having a moment and I’m right there.”

IceFlow Stainless Steel Tumbler With Straw
STANLEY IceFlow Stainless Steel Tumbler With Straw
Now 12% Off
The Quencher H2.0 Flowstate™ Tumbler, 30 oz
Stanley The Quencher H2.0 Flowstate™ Tumbler, 30 oz
IceFlow Stainless Steel Tumbler
STANLEY IceFlow Stainless Steel Tumbler
Quick Flip GO Water Bottle 24 oz
STANLEY Quick Flip GO Water Bottle 24 oz
AeroLight Transit Bottle
STANLEY AeroLight Transit Bottle
Adventure Big Grip Beer Stein 24 oz
STANLEY Adventure Big Grip Beer Stein 24 oz

If you don’t believe her, let the ratings speak for themselves. “I didn’t understand the excitement behind a Stanley cup until I owned one myself! Let me tell you, there is something about drinking from a a straw. I drink much more water than I used to,” one person raved. “It performs very well. Ice retention is superb,” another added. “I use it every day and it’s pretty durable!” someone else wrote.

The 30-oz IceFlow Stainless Steel Tumbler With Straw is discounted as well, which is great for sipping while walking or hiking. What’s not to love about hydrating in style? The Stanley army welcomes you, but hurry and grab yours for a fraction of the price before the sale ends!

Headshot of Kayla Blanton

Kayla Blanton is a freelance writer-editor who covers health, nutrition, and lifestyle topics for various publications including Prevention, Everyday Health, SELF, People, and more. She’s always open to conversations about fueling up with flavorful dishes, busting beauty standards, and finding new, gentle ways to care for our bodies. She earned a bachelor’s degree in journalism from Ohio University with specializations in women, gender, and sexuality studies and public health, and is a born-and-raised midwesterner living in Cincinnati, Ohio with her husband and two spoiled kitties.