Promising review: “I love this cup! I have to drink tons of water to help with an illness called POTS. Most bottles you can find that hold 30+ oz are not very car friendly. This one fits perfectly in a cup holder, and with a straw, it is super easy to drink out of while driving. Super affordable for this size of bottle — I’m so glad I added this one to my collection!” —Lyndi
Price: $29.99 (available in four colors)