The Spec.-Ops. T.H.E. Pack MOLLE Backpack Frame Sheet is designed to fit the Spec.-Ops. T.H.E. 3-Day Assult Pack. The T.H.E. Pack Frame features durable polymer construction that won't crack or degrade and has been designed for extended use. The aluminum stays provide additional support and can be formed to fit the users back, making for a custom fit. The Spec-Ops T.H.E. Pack Frame is just the thing to distribute weight evenly and make those long hauls less of a pain. Allowing users to focus on the task at hand.