Osprey Seral 4 Mountain Bike Hydration Waist Pack Backcountry namely in the vertical compliance

namely in the vertical compliance department

Lock-Up Cuff is an inner cuff that goes across the top of the foot and ankle for better heel hold while entry and exit from the boot is easy

adds warmth and glides smoothly over layers

A gusseted tongue and padded cuff hug the foot and seal out dust and debris for running-shoe-inspired comfort

Grey skies

Osprey Seral 4 Mountain Bike Hydration Waist Pack Backcountry namely in the vertical complianceFor 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. *Features * AirScape backpanel with contouring lumbar