Salomon Soft Flask 500ml (17 fl oz) x 2 SOFT FLASK SALOMON Salomon HydraPak These are the soft flasks that came with the ADV HYDRA8 M size. These are new, unused, and unopened, purchased in October 2025. I am storing them at home because I don't use them. Please check the photos for the condition. I will ship them via Mercari's anonymous delivery service. You can hydrate without taking the bottle out of your pack. For running, trail running, and mountain climbing.