Ultra Flask Speed 500Ml 2-Pack - Collapsible Soft Flask Water Bottle for Hydrati

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.

2pcs 0.5L TPU Soft Flask Collapsible Sports Water Bottle for Hydration Pack for Running Hiking Cycling Climbing Jogging Marathns - AliExpress

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. Its pliable material conforms to most pockets, it shrinks as you drink to minimize water movement and it can be used with or without the tube. Topped with a new feature, the SpeedFill cap, makes aid station refills a breeze. Ultra light weight, ultra useful.

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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. Its pliable material conforms to most pockets, it shrinks as you drink to minimize water movement and it can be used with or without the tube. Ultra light weight, ultra useful.

Ultraflask Speed 500 ml Soft Flask | Hydrapak