Lowe Alpine Chalk Bag This Chalk Bag from Lowe Alpine for bouldering and climbing is specially designed so that you can easily access it with one hand. This simple bag performs its simple task with flying colours. The practical elastic chalk bag, which is securely attached to a hip belt, is complete with an elastic brush holder and drawstring fastener. The stiff closure ring ensures that the bag keeps its shape and offers you easy one-handed access even when climbing.