We take leave-no-trace seriously, and when it matters most we opt for Black Diamond Liquid Black Gold chalk for engineered grip that doesn’t leave residue behind at the crag or bouldering gym. It features a blend between Black Diamond’s trusted White Gold chalk with 10% Pure Gold — a super concentrated form of hyper-absorbent Upsalite. This translates to twice the absorption of regular chalk and scientifically engineered grip.