OSPREY Seral 4 - With Reservoir hydration the Hightower is your elevator

the Hightower is your elevator

Mips Brain Protection System and lower rear coverage

Inverted Tread Design Reduces Rolling Resistance Enabling Greater Straightline Speeds

Attaches to frame with (1) M8 Chainring Bolt

and back of the head

OSPREY Seral 4 - With Reservoir hydration the Hightower is your elevatorFor riders looking for a low profile lumbar pack with integrated hydration, 4 liter Seral is the perfect trail companion. This slim waist pack features the next gen 1. 5 liter Hydraulics reservoir with high strength magnetic coupling for improved hose management even in rough terrain and enough storage capacity for ride essentials, such as a spare tube, CO2 and multi tool and, of course, snacks. AirScape backpanel with contouring lumbar wrap provides