Streamlined yet highly functional, the Mammut Gym Print Chalk Bag is a staple in our training kit. The dustproof closure stops chalk from coating the rest of the gear in our pack, while the freestanding construction makes it easy to quickly dip our hands in during our hangboard warmup. When we're on the wall, the elastic loop keeps our brush handy for well-traveled crimps. Plus, the zippered pocket ensures we won't lose our keys again.