The Osprey Siskin 12L Men's Hydration Pack is ideal for trail running and fast and light hiking. With a 2.5L water bladder, breathable fit, and enough space for a jacket and snack, this men's mountain biking pack is ideal for biking excursions on hot rides.

Designed to do it all—and hold just enough gear— the Siskin 12 Hydration Pack is a pack with many of the high-performing features you’d expect from Osprey. The mesh-covered AirScape backpanel provides excellent ventilation and maximum range of motion—go ahead, get sendy. A LidLock attachment on the front of the pack can store a standard size helmet while side compression straps expand to hold a full face helmet. The main U-zip compartment houses organization pockets for your bike tools and room for a layer, a sandwich, or some light mountain bike padding. Rolled, soft-edge shoulder straps keep the pack stable over technical terrain and ensure no pinching points when full. A dedicated compartment holds an included 2.5-liter reservoir and zippered hipbelt pockets provide easy access to bars during the ride or a bottle opener afterwards. The inclusion of multiple different compartments means you can organise your bag for quick and easy access during your rapid adventures on trail.

VARIABLE HELMET CARRY

Includes Osprey's LidLock helmet carry for traditional helmets and front panel upper compression straps for full face helmets.

RESERVOIR INCLUDED

Osprey Hydraulics® LT 2.5L reservoir keeps you hydrated all day long and stores in a dedicated hydration compartment to protect pack contents from accidental spills.

MOUNTAIN BIKE-FOCUSED FEATURES

Multi-pocketed tool organization and large bucket main compartment stores and protects all your essential gear.

RIDE STABILITY

Osprey's rolled, soft-edged harness contours to the upper shoulders to keep the pack close to your body and provide stability.

AIRSCAPE SUSPENSION

Atilon foam framesheet enables dynamic body movement and evenly distrubutes load across the entire backpanel

AIRSCAPE BACKPANEL

Mesh-covered extra deep ridged foam with center air channel allows maximum ventilation while keeping the load close to the body

BIOSTRETCH HARNESS

Soft breathable spacermesh contact surfaces and die-cut foam ventilation Rolled, soft-edged harness designed to contour the shoulder providing comfort and stability

Features

• Included Osprey Hydraulics® LT 2.5L reservoir by Hydrapak with direct-zip access
• Magnetic sternum strap bite valve attachment
• Dual upper side compression straps double as a full face helmet carry
• Full front panel U-zip to main compartment and tool organization
• Front panel shove-it pocket
• LidLock helmet attachment
• Blinker light attachment
• Zippered hipbelt pockets
• Zippered scratch-free, heat-embossed slash pocket