4L Packing Cube is made with 1000D Cordura and bright 400D Pack Cloth. Two internal mesh pockets were added to make organization simple. Designed to be used with our 21L Backpack, the 4L Packing Cubes will keep everything you need in arms reach while on the go. The Mil-Spec exterior grab handle is a great for attaching the 4L Packing Cube to the outside of a pack if needed. *Custom labeling coming soon!