Ideal for longer expeditions like ultra-trails, the SOFT FLASK XA FILTER filters bacteria and protozoa from natural water sources, so you can drink easily and safely without needing to carrying huge volumes of water. Shrinking as you drink to limit water bounce, the flask lets you know exactly how much you have left. Features a wide 42-mm cap.

Features

• Filtering your water on the go means you can carry less water, and therefore less weight, while you run
• High-flow valve
• Wide 42mm cap for easy refills and drinking
• Removes bacteria and protozoa from approximately 1000L of water, so you can stay hydrated and healthy however remote your destination
• Meet US FDA testing protocol
• 100% BPA, PVC, and PFC free
• TPU & RF welded seams
• Filter included