Osprey Sylva 12L Women's Bike Backpack with Hydraulics Reservoir | AirSpeed Ventilation

Meet the Osprey Sylva 12L Women's Biking Backpack, a thoughtfully designed companion built for longer rides in varied climates. With an included Hydraulics LT 2.5 L reservoir, you’ll have reliable hydration on the move, helping you stay focused on the road, trail, or city streets rather than fumbling with gear. The pack’s compact, streamlined profile keeps you comfortable without feeling bulky, whether you’re cruising desert heat or navigating humid routes.

Designed for real-world cycling, the Sylva 12L balances capacity with a low-profile silhouette. It can hold essential on-bike items like a spare tube, basic tools, and a compact layer, while keeping weight positioned close to the body for stable handling. The result is a versatile pack that adapts to changing conditions and routes, from dawn commutes to longer weekend rides.

Ventilation, stability, and comfort

The AirSpeed suspension uses a tensioned mesh backpanel to maximize airflow and reduce heat buildup during climbs. A bike-specific winged shoulder harness adds on-bike stability, and the design in a women’s fit helps the load sit securely with comfort on longer sessions.

Weather-ready and responsibly made

For weather versatility, the Sylva 12L includes a raincover stored in a base-pocket so you can ride rain or shine. The fabrics are bluesign APPROVED and treated with a DWR finish that’s PFAS-free, offering durable performance while aligning with responsible materials choices.

Organization and on-bike practicality

Storage is organized and accessible: a LidLock helmet carry keeps a helmet secured when not in use, and multiple pockets support quick access to tubes, a first aid kit, or an extra layer. The 2.5 L reservoir is designed for easy hydration on the move, with a magnetic bite valve attachment for smooth sipping on the trail or road.

• Reservoir included with magnetic bite valve for easy hydration on the go
• AirSpeed backpanel promotes ventilation to help you stay cool
• Winged shoulder harness and bike-specific fit for stable, comfortable carry
• Raincover stored in base pocket; bluesign fabrics with PFAS-free DWR treatment

• LidLock helmet carry for quick, secure helmet storage
• Well-organized pockets for tubes, tools, and essentials
• Compact footprint: 16.9H x 10.2W x 8.7D in; weight about 1.98 lb

Specs at a glance

Dimensions: 16.9 inches high, 10.2 inches wide, 8.7 inches deep. Capacity: 12 liters. Weight: 1.98 pounds. Hydration: 2.5-liter reservoir included. Materials: bluesign APPROVED, PFAS-free DWR.