Here's what other sites are saying:
The Refillable Super Chalk Ball from Metolius is your closest confidant as you climb thanks to the safe drying agent added to the highest-quality magnesium carbonate, providing maximum sweat absorption and friction.
- Mountain Gear
Metolius Chalk Bags & Chalk Super Chalk Sock-Standard DBAL001. Many climber's use it for the same reasons.
Keep the clouds of chalk dust to a minimum with the refillable Metolius Super Chalk Sock.
Description of Metolius Super Chalk SockThe 1 selling brand of climbing chalk in AmericaFeaturesThe original chalk specifically formulated for rock climbingA safe drying agent is added to the highest-quality magnesium carbonate for maximum sweat absorption and friction Standard non-refillable or refillable Chalk Sock for gym or indoor home useReduces dustContains 1.1 oz. 31 g of Super Chalk
- US Outdoor Store