Osprey Siskin 12 Backpack with Reservoir - Blue - 12L Pack - 2.5L Bladder Envelope Shipping With a rear-specific tread pattern

With a rear-specific tread pattern engineered for maximum traction under accelerating and braking

the derailleur naturally pushes out of the way

The jersey features a classic fit that isn't too tight

Troy Lee Designs has become synonymous with high-end

Osprey Siskin 12 Backpack with Reservoir - Blue - 12L Pack - 2.5L Bladder Envelope Shipping With a rear-specific tread patternA high performing mountain bike pack that carries just enough gear, the Siskin provides stability and comfort on every trail. Featuring unique fabric treatments, room for critical gear, and an included updated Hydraulics LT 2. 5L reservoir. Key Attributes Reservoir included Osprey Hydraulics LT 2. 5L reservoir and sternum strap magnetic bite valve attachment. Ride stability A rolled, soft edged harness and airmesh wrap hipbelt create comfortable and