Liquid chalk - I could say a lot about liquid chalk.
Rumour has it that it's fatal to the covid-19 virus, and makes you a grade stronger. I would love if DMM provided information on their sourcing of chalk as the retail space for chalk has become a lot more crowded in recent years and brands have turned to environmental credentials as a point of difference.
Is it mined, is it a by-product of desalination? Is it collected and recycled from those air filters that have started popping up at expensive walls? I have literally no way of knowing and I did have a quick google.
Performance wise, I think it performs solidly - better than Black Diamond chalk or wild country liquid chalk but not really at the heady heights of Gekco. Extra points for having a leak-proof cap for the bottle!