Best in 7 days
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Description
STANLEY The Oasis Quencher Protour Flip Straw Tumbler 30 Oz Cornflower ChevronSay hello to the best selling Cornflower Protour with addition of the Chevron Stripe. The new leakproof 30 ounce Quencher ProTour Flip Straw Tumbler makes hydration simple flip up to sip, then snap it shut and its leakproof. Thanks to double wall vacuum insulation, your drink stays cold for hours. Its ready to toss in your bag and fits your car cupholder. 18 8 recycled stainless steel Double wall vacuum insulation Leakproof ProTour Flip Straw lid
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.3 ★★★★★
Based on 1478 reviews
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Product Reviews
★★★★★ 5
Only protein shake I've found that doesn't cramp my stomach
Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12)
I've tried the vanilla, strawberry and chocolate, and chocolate is by far the best. It's not too sweet (where as the vanilla and strawberry were). It doesn't have any extra whey concentrate or caseinate or soy or whatever added to it to boost protein. Brands that do that mess up my stomach, giving me bad stomach cramps. This is just highly filtered milk, and lactase enzyme that tackles the lactose sugar left behind after filtration. Maybe that's the secret. (I can drink normal milk and not get cramps. But, whey protein isolate and other things give me cramps.) This has become a go-to in a protein diet I'm on. I'll have one for breakfast with some coffee. That lasts me until lunch. If not, I'll simply have another 2 hours later. They're each less than 200 calories, so it's not too bad having another if it staves off hunger. I find I eat a smaller lunch. I might have another one for a mid-afternoon snack. Then I'll have a normal dinner. Basically I'm replacing bigger meals and a breakfast with 2-3 smaller calorie protein shakes. And the protein keeps me satisfied. (unlike something like slim fast that's just all sugar and ramps up your insulin). They're a bit pricey (almost $4/bottle). But, I'm cutting back on my grocery bill as well. So, it's balancing out. I figure I could be spending $12/day on fast food or some other garbage that makes me fat. Instead I'm drinking 2-3 of these a day, and am down 10lbs over a month. I'll stick with these.
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Reviewed in the United States on April 27, 2026
★★★★★ 5
No Chalky Aftertaste!
Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12)
I've tried many different kinds of protein drinks, and almost all of them have either an unpleasant consistency or aftertaste. This Core Power Chocolate Protein Shake is by far the best I have ever tasted. If you place your cold drink in the freezer for about an hour and a half before drinking, it becomes slushy like a real milkshake. It is delicious and high in protein. I drink one just about every day for a quick and easy lunch.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
still the best but a big price premium
Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12)
Still the best tasting out there. drinking these is not a chore. easy open bottle. the price is the only thing, These are great for lunch replacement where you actually look forward to drinking it. every now and then my kids will get to them. it really is like a really good chocolate milk closer to a milkshake. but yea price is a touch excessive, but this protein level is the best price per gram after i ran the numbers compared to theor other products.
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Reviewed in the United States on April 4, 2026
★★★★★ 5
Great source of protein.
Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12)
Great source of protein! It is not too sweet and the chocolate flavor is the best. There is not any nasty after taste, so they are easy to drink. My only complaint is how expensive they are.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Great Tasting and Already to GO!!
Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12)
As someone who’s into fitness, I was looking for a tasty protein shake that I could grab on the go, and the Core Power High Protein Milk Shakes have become my favorite. This is the chocolate flavor, 14 fl oz bottles, and they come in a case of 12. Each bottle packs 26g of protein which is perfect for recovery after a workout or even as a meal supplement if I’m in a rush. What sets Core Power apart for me is the taste and texture – the chocolate flavor is rich and creamy, not chalky or overly sweet like some other RTD shakes. It’s like drinking a chocolate milk, honestly. I also like that it’s made with real milk (ultra-filtered lowfat milk), so it contains natural high-quality protein (both whey and casein) and it also has a good amount of calcium. It’s not just a thin water-based shake; it feels more satisfying and indulgent. Despite the creaminess, it’s actually low fat and doesn’t sit heavy in my stomach. I usually chill them in the fridge and it’s a nice cold treat post-gym. They’re lactose-free (the ultra-filtering removes lactose, I believe), which is great because I’m a bit lactose sensitive and I’ve had zero issues digesting these. Each bottle also has around 170 calories and they are pretty low in added sugar compared to some other brands – plus the 26g of protein per bottle is a solid dose. I find it keeps me full for a decent amount of time. The convenience is top-notch; I keep a couple in my gym bag (they’re shelf-stable until opened) and a bunch in the fridge. The 12 pack usually lasts me a couple of weeks if I’m doing one a day after workouts. It’s also a lifesaver for those mornings I don’t have time for breakfast – I can just drink one of these and know I’ve gotten protein and some nutrients in. All in all, Core Power Chocolate is delicious and effective. It feels like a treat but is fueling my body with what it needs. I’ve tried many protein shakes and this one is by far the best tasting and easiest on the stomach. Highly recommend for athletes, gym-goers, or anyone wanting a protein boost with great taste.
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Reviewed in the United States on July 18, 2025
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