With extra-tall sides to ensure complete stability for your bottle or cups, this cup holder works brilliantly for water bottles or the morning beverage on the way to work. The 1-inch slot is ideal for those cups with handles, such as the standard travel mug while the sides reach an additional 3 inches. Meanwhile, the tapered base works to 2.6 – 3.4 inches to provide a snug fit in your fitted car cup holder.
The upper diameter reaches 3.9 inches across and is therefore wider than some of our options. However, due to the added height, it is not as stable as some of the higher options on our list, with some users noting that sharp turns can throw off the center of balance for this option.