Spider Chalk Powder Chalk contains pure magnesium carbonate with no fillers, unhealthy additives or drying agents. Until now, there has never been high-grade powder chalk and you can feel a difference immediately. Pure chalk lasts longer and remains dry even during sweaty workouts. Used by top athletes for bouldering, rock climbing, weightlifting and CrossFit.
Choose Large 8oz or Extra Large 12oz size.
Choose Chunky or Powder texture. Chunky has small bits of our ultra-dense blocks combined with powder.
We manufacture all of our chalk products in the USA. We do not buy cheap chalk from China and Taiwan and put our label on it! This is pure, laboratory-grade magnesium carbonate.