The 5.11 Tactical's proprietary Back-up Belt System has been developed to provide a secondary way to store bulky, uncomfortable gear that you would normally carry on duty or simply the stuff you would carry each day as a civilian. CCW, wallet, ID, cell phone, I-pod, kitchen sink etc. A couple sets of Handcuffs, Extra magazines, Baton, OC spray, Radio, Snickers bar,  Tactical knife and anything else you can think of.