The North Face NORTHDOME CHALK BAG 2.0 The North Face NORTHDOME CHALK BAG 2.0 is a tough and durable bag that provides easy access to magnesium when you are on the rock. This stylish magnesium bag has an adjustable strap and it is made of a corduroy-like material. In addition, the chalk won't spill out, because it has a rolling closure that pulls over the backpack. The thick lining on the top helps it hold its shape when you're fishing for chalk.  The North Face NORTHDOME CHALK BAG 2.0