Osprey Aether 55 Men's Hiking Backpack 55L Deep Acorn Red L/XL

The Osprey Aether 55 is a premium men's hiking backpack engineered for multi-day adventures and heavy loads, offering exceptional comfort and organization in a 55-liter capacity. Its AirScape™ suspension system and Custom Fit-on-the-Fly™ components deliver a personalized fit for demanding treks.

Advantages

Built with Bluesign® approved high-tenacity nylon and PFC/PFAS-free DWR, this pack combines durability with environmental responsibility. The AirScape™ backpanel and injection-molded HDPE framesheet provide stable load transfer for 14-27 kg, while the Custom Fit-on-the-Fly™ hipbelt and shoulder straps allow precise adjustment. Multiple access points, including a large front panel zip and sleeping bag compartment, make gear retrieval effortless. An integrated rain cover and Stow-on-the-Go™ trekking pole attachment enhance versatility in changing conditions.

Suitable for

• Multi-day backpacking and thru-hiking
• Heavy load carrying (up to 27 kg)
• Trekkers needing a customizable, ventilated fit
• Outdoor enthusiasts in wet or variable weather

Key specifications

• Volume: 55 Liters
• Colour: Deep Acorn Red
• Size: L/XL (Men's)
• Main Fabric: Bluesign® approved 420D high-tenacity nylon, PFC/PFAS-free DWR
• Accent Fabric: Bluesign® approved 210D high-tenacity nylon, PFC/PFAS-free DWR
• Bottom Fabric: Bluesign® approved 420D high-tenacity nylon, PFC/PFAS-free DWR
• Suspension: AirScape™ backpanel with injection-molded HDPE framesheet and die-cut foam
• Hipbelt: Custom Fit-on-the-Fly™ Hipbelt
• Shoulder Straps: Custom Fit-on-the-Fly™ Shoulder Straps
• Load Range: 14 - 27 kg (30 - 60 lbs)
• Access: Top-loading, large front panel zip, sleeping bag compartment
• Pockets: Dual zippered hipbelt, large stretch-mesh front, dual access stretch-mesh side, zippered lid, under-lid mesh
• Hydration: Internal sleeve with center back exit port
• Rain Cover: Included (integrated and removable)
• Trekking Pole Attachment: Stow-on-the-Go™
• Ice Axe Loops: Dual with bungee tie-offs
• Compression: Dual upper/lower side straps, front panel StraightJacket™
• Sleeping Bag Compartment: Zippered base with removable divider
• Removable Lid: Converts to DayLid™ daypack

Recommendations

Ideal for backpackers who prioritize fit customization and durable, weather-ready performance on extended trips. Pair with Osprey's hydration reservoir and lightweight dry sacks for optimal organization.