The POCKET FLASK from Hydrapak is a lightweight, collapsible flask that can be used for running, cycling or any other sporting event.
Easy to fill thanks to its 42 mm opening and easy to use thanks to its high-flow valve, this flexible water bottle also has the advantage of shrinking as it is emptied from its container. Its flexible material, free from harmful substances, makes it easy to transport.
Finally, this model has a hermetic cap to prevent leaks.