Search query: osprey backpack ace 50
Product: Osprey Rook 50 Men's Backpacking Backpack, Black
Brand: Osprey
Color: Black                        
Highlights: Highly ventilated and comfortable AirSpeed backpanel with adjustable shoulder harness to fit a wide range of torso lengths
Integrated removable rain cover
Zippered bottom sleeping bag compartment with floating divider
Dual mesh side pockets and zippered hipelt pockets
Internal hydration reservoir sleeve accommodates up to a 3L reservoir (sold separately)
ESCI relevance label: E