250ml/500ml 
With a wide 42mm cap and high-flow valve, the SOFT FLASK 250/500ml makes staying hydrated faster and easier, so you can focus on the trail ahead. Shrinking as you drink to limit water bounce, the flask lets you know exactly how much you have left. Compatible with all Salomon caps featuring a 42mm opening.
 
490ml Filter
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.