Part of our ultra-light series, the 500 ml is so light, you might forget you brought it. Weighing in at just over an ounce, it’s optimal hydration, no matter what kind of runner you are. Topped with our SpeedFill cap for quick aid station refills and is ready for use with or without the tube.
UltrFlask™ WMX 500ml Soft Flask
Salomon Soft Flask - 16 fl. oz.
Stow Bottle 500ml – Sports Basement
Soft Flasks
Best Water Bottles for Runners for 2024 - Best Running Water Bottles
HydraPak UltraFlask Speed 500ml - Collapsible Soft Flask Water Bottle for Hydration Vests and Running Packs with Easy Open Cap (500 ml/17 oz),Malibu Blue : Sports & Outdoors
10 Best Water Bottles for Running UK 2023, Nike, Osprey and More
HydraPak SoftFlask 150ml/5oz
Hydration Soft Flask 500ml, Running Hydration Bottles