Stanley Just Dropped an Exclusive Out West Collection at Amazon and the Colors Are *So* Cute

If you're not yet a member of the Stanley fan club, here’s why this cup is a cult favorite: The sleek, stainless-steel and dishwasher-friendly tumbler holds up to *40* fluid ounces—hot or cold—and has double-walled vacuum insulation that the brand claims will keep drinks chilly for up to two days or warm for up to seven hours. Plus, it’s designed with a wide shape at the top that narrows at the base, making it a perfect fit for your car’s cup holder (because there’s nothing worse than having to hold a cup in your lap).

Stanley Quenchers have also gotten few minor upgrades since they originally launched, including a small suction design to create a vacuum and hold your straw in place. The thin, rotating cover atop the lid now also has a smoother twisting mechanism that's less prone to get stuck, and features three resting positions: a straw opening (for the reusable straw that comes with it), a traditional wide mouth for drinking straight from the cup and a full-top cover placement for when you’re taking a break from your drink or just want to prevent a spill. Another small detail that sets this baby apart from all the other tumblers on the market? None other than the comfort-grip handle that makes it great for toting around on the go.

One impressed buyer writes, “I ordered this Stanley for myself for my birthday. It is extremely well-made and beautiful! It keeps my water ice cold for a whole day. I always get compliments on it no matter where I go. I take it everywhere with me and it fits in my car cupholder perfectly. I also feel that I have been much more hydrated lately! [I] would recommend this product to everyone!"

In other words, it’s the ultimate hydration accessory, whether you're heading out for a day of errands or lounging by the pool in the summer heat. Talk about making a splash.