Osprey Siskin 12L Mens Biking Backpack with Reservoir

Osprey Siskin 12L Men’s Biking Backpack — Obsidian Black

Purpose-built for cyclists, the Siskin 12L combines a compact 12-liter profile with bike-specific features that keep tools, hydration, and safety gear organized and within reach for day rides, commutes, and fast trail laps.

• Hydration ready: Dedicated hydration compartment with the included BPA-free Hydraulics LT 2.5L reservoir by Hydrapak, plus intuitive hose routing and a magnetic sternum-strap attachment for secure, convenient access to the bite valve while you ride.
• Easy access and organization: Full front-panel U-zip opens wide for quick access to the main compartment and the integrated tool organization area so you can reach pumps, tubes, and multi-tools without unpacking everything.
• Helmet and visibility options: Built-in LidLock helmet attachment and dual upper side compression straps that also convert to a full-face helmet carry solution. Includes a loop for a blinky light (light not included) to enhance visibility in low-light conditions.
• On-the-bike convenience: Magnetic sternum strap for simple bite-valve stowage and quick release, plus zippered hip-belt pockets for small essentials like keys, snacks, or a phone.

Designed with the practical needs of cyclists in mind, the Siskin 12L offers secure carry, organized storage, and integrated hydration so you can focus on the ride. The included Hydraulics LT reservoir means you’re ready to hit the trail or the commute right out of the box.