The Mammut Boulder Chalk Bag is designed for bouldering and provides enough space for a good amount of magnesium.

Place it comfortably at the base of your boulder and you can access it easily and quickly thanks to the roll-top opening.

You have an extra compartment with zip closure designed to keep delicate objects such as mobile phones or cameras away from dust. A mesh pocket on the other hand will guarantee you space for brushes or tape.

Once opened you will find a comfortable Nylon bag with drawstring closure equipped with a carrying handle.