The well-fitting Duro Pro 10 is typical Osprey: the carrying comfort is excellent, the design follows your body, and every pocket has a purpose. The Duro Pro 10 was developed with the help of experienced ultrarunners. With a zippered main compartment, easy-to-use pole pocket, two half-liter soft bottles and easy-to-use front pockets, it's ready for both races and long training runs. NOTE! The hydration bag/hose shown in some pictures is not included in the price. - Two 500 ml soft bottles that fit in their own chest pockets are included in the price - Duro Dyna Pro Quiver pole pocket - The backpack also has removable holders for carrying poles on the front or back - Two chest straps - Bottle pockets are designed to minimize bouncing and bouncing - Spacious, open-ended back pocket - There is an open pocket at the upper back, e.g. for a running jacket - Zippered security pocket - Four elastic open pockets - Front attachment point for GPS running tracker - Removable safety whistle, a m