Patagonia Ascensionist Pack 45L Backpack

Item # PTG14203M   |    Bookmark and Share

Qualifies for Free Shipping and Free Returns
Price: $178.95

In Stock! Ships Monday, April 27.

Alternate Views
  • Patagonia Ascensionist Pack 45L Backpack
  • Andes Blue
  • Tailored Grey

Key Features

  • Integrated asymmetrical spindrift collar opens wide for easy packing and draws shut in one motion
  • Additional spindrift collar to protect gear when pack is overstuffed
  • Padded hip belt can be removed to create a simple webbing hip belt


Recommended Use: Climbing or Hiking
Item Weight: 2 lbs 3.9 oz
Dimensions: Small/Medium: 25.5" x 13" x 10"
Large/Xlarge: 27" x 13" x 10.5"
Type: Climbing Pack/Day Pack
Volume: Small/Medium: 2624 cu in
Large/Xlarge: 2868 cu in
Material: Body: 210D Nylon Semi-Dull Double-Ripstop and 400D Nylon Ripstop
Lining: 40D Nylon Double-Ripstop with a PU Coating and Silicone Finish and 200D Polyester
Frame Material: Aluminum
Fits Torso: Small/Medium: 16"-19"
Large/Xlarge: 19"-22"
Hydration Compatible: No
Access: Top Loader
Detachable Daypack: No
Sternum Strap: Yes; Adjustable Position
Torso Adjustment: No
Warranty: Limited Lifetime

Product-Related Videos

  • Product Demo
    Patagonia Ascensionist 45L Pack   Patagonia Ascensionist 45L Pack
  • How-to Guide
    How to Measure Your Torso For Backpack Fitting   How to Measure Your Torso For Backpack Fitting

Product Highlights

The climbing-centric Patagonia Ascensionist Pack 45L is at home on the backcountry trail, but it excels on mountain climbs. The pack’s unique design is function-driven to efficiently carry a load, but it also has versatility and stylish good looks.

The lightweight framesheet made with a mesh-covered aluminum rod provides support for weighted loads and moves with you, yet is completely removable if reducing pack weight is your goal. Ergonomic shoulder straps with load lifters match the shape of your torso for 24-hour comfort, and the padded waistbelt is designed to stay out of your harness’s way or be completely removed if not needed.

The Ascensionist Pack 45L’s construction eliminates excess fabric; the integrated, asymmetrical spindrift collar that opens wide and closes in a single-motion for fast, hassle-free packing protects your gear from nasty weather, but ensures the pack stays open at hanging belays. The overall asymmetric profile of the Ascensionist Pack 45L allows for elbow clearance, and a zippered vertical pocket on the lid provides quick access to small essentials. There is also an additional spindrift collar that can be deployed when the pack is over-stuffed. Weighing in at just 2 pounds, 3 ounces, this strong pack featuring nylon ripstop fabrics has a 2624 cubic inch load capacity in the Small/Medium size and a 2868 cubic inch load capacity in the Large/XLarge.

Additional details found on the pack include compression straps to carry skis and cinch down loads, a hydration reservoir pocket for compatibility with hydration systems (sold separately), a center sheath ice axe carry system and daisy chains on the front and side panels for a variety of gear lashing options.

The Patagonia Ascensionist Pack 45L pack is available in your choice of color and Small/Medium (fits 16"-19" torso lengths) or Large/XLarge (19"-22") sizes.

Styles available: Large/Xlarge Andes Blue, Large/Xlarge Tailored Grey, Small/Medium Andes Blue, Small/Medium Tailored Grey

Patagonia part numbers: 48000-ANDB-L/L, 48000-TGY-L/XL, 48000-ANDB-S/M, 48000-TGY-S/M