The Black Gold Loose Chalk is Black Diamond's premium chalk that absorbs twice the moisture than other chalk for climbing. Its Pure Gold is a concentrated form of hyper-absorbent magnesium carbonate, and Black Diamond added Upsalite for even better moisture absorption.

• Black Diamond's premium chalk scientifically engineered for climbing
• Super porous Pure Gold magnesium carbonate containing Upsalite
• Comes as loose chalk
• 300 g packet