Osprey Sirrus 44 O/S (2026) (various colours)

A ventilated overnight pack built around a women's-specific fit and organised, trail-ready storage.

The Osprey Sirrus 44 is a 44-litre top-loading pack designed for women's overnight and multi-day hiking. The suspended mesh back panel promotes airflow and load transfer, while the adjustable torso length and women's-specific harness geometry deliver a secure fit across a range of body sizes. Multiple access points and a collapsible lower compartment keep gear organised and accessible throughout the day.

Features

• Suspended mesh back panel for ventilation and load transfer
• Adjustable torso length with women's-specific harness geometry
• Hidden side-zip secondary access to main compartment
• Collapsible zippered bottom compartment with sleeping bag separation
• Fixed top lid with large compartment, underlid zippered pocket, and key clip
• Internal hydration sleeve with hose routing port and Hydraclip (reservoir not included)
• Stow-on-the-Go trekking pole attachment and ice tool loop with bungee tie-off
• Adjustable magnetic sternum strap with safety whistle
• Integrated raincover stores in base pocket

Technical Specifications

• Capacity: 44 l
• Max load: 16 kg
• Dimensions: 73 × 34 × 34 cm (H × W × D)
• Main fabric: bluesign® approved 100% recycled 210D nylon with PFAS-free DWR treatment
• Base fabric: bluesign® approved 100% recycled 420D nylon with PFAS-free DWR treatment
• Frame: external
• Weight: 1.6 kg