Patagonia Ascensionist 55L Backpack

Ascensionist 55L Backpack hauls gear with a lightweight, customizable design for alpine expeditions

What Our Gearhead® Experts Are Saying:

"When I´m heading into the alpine for multi-day climbs, I need a pack that carries heavy loads without weighing me down. The Ascensionist 55L delivers with its lightweight aluminum stays and modular design, letting me strip it down when I need to move fast. The spindrift collar expands for extra storage, and the rope-carrying system and ice tool attachments keep my gear secure. Whether I’m hauling gear on long approaches or making a final summit push, this pack is built for the job."

For full-value alpine missions, we need a pack that can handle everything from heavy hauls to fast-and-light pushes. The Patagonia Ascensionist 55L Backpack answers the call with a streamlined design that balances weight, capacity, and versatility. Built for long approaches and high-altitude climbs, this pack features lightweight aluminum stays for support and a customizable fit with a removable lid, frame, and hip belt pads.

Storage is dialed for efficiency, with an expandable spindrift collar, a secure rope-carrying system, and modular compression straps that let us adjust our load for any objective. Ice tool attachments handle a variety of axe shapes, while the internal hanging pocket keeps smaller essentials within reach. Made with durable, weather-resistant recycled nylon ripstop, the Ascensionist 55L is built to withstand alpine environments while keeping us moving fast and light.

Details

• Lightweight 55L alpine pack for multi-day climbs and long approaches
• Dual aluminum stays provide support for carrying heavy loads
• Expandable spindrift collar adjusts capacity based on gear needs
• Secure ice tool and rope-carrying systems keep gear accessible
• Removable lid, frame, and hip belt pads for a customizable setup
• Modular compression straps allow for streamlined or expanded carry
• Durable, weather-resistant recycled nylon ripstop construction
• Item #PATZAWV

Tech Specs

Responsible Collection

Bluesign Approved, Recycled/Repurposed

Material

[face fabric] 420D recycled nylon ripstop, [lining] 200D recycled polyester

Volume

55L (3356cu in)

Support/Suspension

aluminum stays

Waist Belt

padded

Access

top

Pockets

internal stash

Gear Loops

daisy chain, three-point rope-carry

Helmet Carry

yes

Ice Axe Carry

yes

Compression

removable straps

Dimensions

26 x 12.5 x 7.5in

Claimed Weight

2lb 13.2oz

Activity

hiking, backpacking, climbing

Manufacturer Warranty

lifetime