UltraFlask 500ml - Collapsible Soft Flask for Hydration Vests and Running Pack with Compatible 42mm Filter Cap

The manufacturer touts the following benefits for their product:

• High flow rate: This filter can produce approximately 1,500 liters of fresh water at a rate of over 1 liter per minute, making potable water accessible anywhere.
• Safety: It effectively removes common waterborne bacteria (99.9999%), parasitic cysts (99.999%), and microplastics (99.999% for particles greater than or equal to 3.0 microns in size) per EPA Guide Standards and NSF 42.
• Ease of use: The high flow drink nozzle is designed for easy one-handed operation, with a dust cover to keep the valve clean and protected from the elements.
• Hydration vest compatible: It fits easily in most hydration vests, belts, or pack pockets, providing bounce-free stability and a flexible flask shoulder to prevent chafing.
• Collapsible flask: The soft material can conform to any pocket and shrinks as you drink to reduce movement, packing away easily when empty.
• Perfect for aid stations: The UltraFlasks come equipped with a SpeedFill Cap for quick and easy refilling at aid stations. A side tab pops open the cap in one motion and snaps shut with a click.

product information: