Review on TPU Folding Flask: TRIWONDER Soft Flasks Collapsible Water Bottles For Hydration Pack - Ideal For Running, Hiking, Cycling & Climbing by David Boone

I recently bought a Triwonder Hydration backpack to replace my Camelback and bought both the small hard water bottles and these foldable ones. I absolutely love these and they are my go to water bottles, especially for any runs less than 10 miles --- I mostly run 3-10 miles. I primarily use these and remove the 2L water pack as they are light, easy to access and easier to get a quick drink while running. Yeah, the bottles still have a little plastic taste but it is not any worse than my previous Camelback pouch.