Osprey Duro 1.5 Men's Running Hydration VestZippered reservoir sleeve with included Hydraulics LT 1. 5 liter reservoir by Hydrapak with QuickConnect and sternum magnet included Vertical zippered harness slash pocket with whistle zipper pull and trekking pole attachment Dual lower stretch mesh food supplement harness pockets Dual extra large stretch mesh soft flask food harness pockets Accessible dual lower side panel zippered stretch mesh pocket Breathable mesh wrap with soft irritation contact