Osprey Berm 2Got Water?The Berm 2 is the minimalist's hydration pack-built for riders who want lightweight comfort without compromise. This compact bike pack keeps you hydrated and mobile with an included 1. 5L Hydraulics reservoir and a ventilated Air Scape(TM) backpanel. Perfect for quick laps on your favorite trails where weight matters and simplicity wins. Features Air Scape(TM) backpanel with mesh-covered ridged foam for ventilation and support Included 1. 5L Hydraulics reservoir with magnetic bite valve attachment Compact main compartment with zippered pocket and key clip Minimal, lightweight design keeps the focus on riding, not carrying Bike-specific harness with adjustable sternum strap for secure fit Breathable mesh shoulder straps with hydration hose routing Reflective details and blinker light attachment for trail visibility SPECIFICATIONSIntended Use Mountain Biking, Short Rides, Quick Laps Capacity2 L (plus 1. 5L reservoir)Weight~0. 9 lbs / ~0. 4 kg (without reservoir)Back Panel Mesh-covered, ridged foam (50% recycled EVA)Included Reservoir Osprey Hydraulics 1. 5LMaterials Bluesign(R) approved, 50% recycled EVA foam, lightweight fabrics Warranty Lifetime All Mighty Guarantee | Osprey | Berm 2 | Raven Black | Hydration Pack