Dust-free roll closure system. Large dust-proof zip compartment for smartphone. Large mesh compartment for brushes and useful things Practical carry handle for easy transport to the next problem. PFC-free. High-quality fleece lining for less dust and even distribution of chalk on the hand. Foldable construction takes up little space Outer material and closure made from recycled polyester. A practical chalk bag with dust-proof roll closure system for everything you need when bouldering. Your smartphone can be stored dust-proof in the zip pocket. Tape, brush and other useful things can be stored in the mesh pocket. Do you want to the next problem? Simply pack your Boulder chalk bag with the practical handle. On the go, the magnesia bag can be folded small and saves space.