This M X3 Gear Cube is a medium-sized Pack-It Gear Cube that boasts 3-times the depth of the standard Gear Cube medium. Durable and water-resistant, the Gear Cube M X3 offers a new echelon of protection for big boots, waders, heavy gear and tools. Attach it inside your Eagle Creek bag via the snap-secure attachment points. It's a must-have for any rugged adventurer; truly the ultimate protective organizational solution