The ergonomic shape of the Petzl Sakapoche chalk bag makes chalking up easy. The practical drawstring closure system prevents chalk from spilling out during transport. It has an expandable zipped pocket perfect for storing keys or a snack, plus two brush slots that can hold a variety of brush types. The Sakapoche's liner is sewn into the bottom, so it stays in place when you take your hand out. This eco-conscious bag is made with 93% recycled materials and features an irregular pattern to limit fabric waste in production. It also means every bag is unique.