There are a wide variety of drink holders for a reason. We all have different likes and dislikes. So it is important to think about the size of the drink you typically carry. It only makes sense that you wouldn't buy a holder that is smaller and meant for water bottles if you like to carry a large travel mug. But if you only carry a small bottle then you know what one to buy! The last thing you want is your drink to be rattling or falling out while you are on the road.
A good alternative to keep in mind is purchasing an adjustable cup holder. Especially If you aren’t sure what sized drinks you want to carry, or you want to have the freedom to change your mind, then getting an adjustable one is a way to go. This will ensure that the drink holder that lets you change its size so that it will be secure for both small and large drinks.