Messenger tested, rivet-head approved. The Solo leg holster was orignaly designed as an alternative bag to carry a U-lock, repair kit and tools so cyclists didn't have to keep digging through their bags to lock up. The Solo is made of abrasion resistant, waterproof codura. Two belt loops at the top allow for easy on/off when securing to a belt, two ammo-style pockets, hidden pen sleeve, and adjustable thigh strap. Currently available in black. Please specify right or left side.