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

Revainrating 5 out of 5

pertect for what I wanted

This is exactly what I was looking for. A small soft container to put in a pocket for a drink on a 2 or 3 hour walk. However be aware, the angled mouthpiece has a push/pull.on/off to it. I thought I had defective items until I figured this out. It's actually a good idea and great engineering.

Pros
  • Compatible with hydration packs
Cons
  • May not be suitable for cold weather