Flasks can be a cool product to have around. An interesting tool that's been used for over a century. They have their place as a unique EDC (Everyday Carry) item for any guy looking to not have a water bottle with them at every waking moment(Mother earth can't thank you enough). For environmental and style factors, we highly recommend a cool flask for any man that wants one. Save the environment from plastic by re-using this sophisticated drinking container, and look good while doing it. Sound like a win-win to me.