Shopping for the best collapsible water bottle for you isn't much different than shopping for any other good water bottle. No matter what you're into and what you're buying it for, there are a few things to consider.
Closures
The type of closure is the one feature that differentiates one bottle from another. Some collapsible water bottles use screw-top closures, others use flip-tops, while some rely on suction. There is no one best type of closure. The right one is entirely up to you and how you prefer to drink. Whichever type you decide on, just be sure to look for a bottle with a durable, leakproof closure.
Materials
Collapsible water bottles are available in a wide variety of materials. Some are extremely thin plastic designed for portability over durability. Others use heavier-grade silicone or TPU that's built to last longer and be more rigid, which can make them slightly less portable but easier to hold and drink from. Again, the right material is entirely up to you. Try a few different styles in-store to get a feel for the pros and cons of each option.
Capacity
Consider the capacity—how much your new collapsible water bottle will hold. If you'll mainly be using your bottle around town, at the office, or while traveling (all with easy access to water fountains), a smaller, more portable bottle should suffice. If, however, you're looking for a portable water bottle for long hikes, cycling trips, or any activity that could take you away from reliable water sources, opt for a larger alternative.
