Originally designed for carrying a helmet on the exterior of the pack. The design wraps around the helmet, locking into place, allowing the user more internal space for sustainment gear. The 3 Zip design allows the user to access sustainment gear when the stick-it is attached. The product is compatible with any pack that has MOLLE on the bottom and side panels. Attaching with quick attach straps and button snaps. The 3 Day Assault and Komodo Dragon are the most compatible pack designs with the removable stick-it.