Mountainsmith Phantom 40 Day Pack

Item # MNS12204M   |    Bookmark and Share

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Reg. Price: $164.94

Sale Price: $124.95

You save $39.99 (24%)

End of Season Clearance!


In Stock! Ships Monday, February 2.

Alternate Views
  • Mountainsmith Phantom 40 Day Pack
  • Mountainsmith Phantom 40 Day Pack - 1
  • Mountainsmith Phantom 40 Day Pack - 2

Key Features

  • Hybrid top-loading/panel loader
  • Reverse-canted waistbelt for optimum load transfer
  • Perforated Air-flow shoulder straps with Zonal Load Dispersion padding
  • Breezeway suspension backpanel for increased airflow and breathability
  • Lumbar Control Point pad
  • Diamond airmesh foam backpanel and waistbelt with DWR finish
  • Contoured PE framesheet
  • Iliac Crest Shelf (ICS) Cup waistbelt fit
  • Pivoting dual-density waistbelt
  • Front adjusting X-configuration waistbelt attachment
  • PE waistbelt slider enables horizontal and vertical positioning adjustment
  • Delta Wing Compression waistbelt adjustment
  • Side mesh waistbelt stash pockets
  • Elastic sternum strap and bite valve catch
  • Interanl hydration bladder sleeve with exit port
  • Anti-sag hydration bladder harness
  • Side compression straps with quick-release hardware
  • Tool and trekking pole mount loops
  • Zippered front panel stash pockets
  • Haul handle


Recommended Use: Lightweight Overnight Backpacking, Day Hiking and Climbing
Item Weight: Small/Medium: 3 lb 9 oz
Medium/Large: 3 lb 13 oz
Dimensions: Small/Medium: 22" x 10.5" x 8.75"
Medium/Large: 24" x 10.5" x 8.75"
Type: Internal Frame Backpack
Volume: Small/Medium: 2560 cu in
Medium/Large: 2750 cu in
Material: 210D Duramax Ripstop Nylon; 420D Duramax Nylon; and 210D Ripstop liner
Frame Material: PE Framesheet
Fits Torso: Small/Medium: 15"-18"
Medium/Large: 18"-21"
Hydration Compatible: Yes
Access: Panel Loading
Maximum Weight: 35 lbs
Detachable Daypack: No
Sternum Strap: Yes; Adjustable Position
Warranty: Lifetime

Product-Related Videos

  • Product Demo
    Mountainsmith Phantom 40 Backpack   Mountainsmith Phantom 40 Backpack
  • Product Demo
    Mountainsmith Phantom 40 Day Pack   Mountainsmith Phantom 40 Day Pack
  • How-to Guide
    How to Measure Your Torso For Backpack Fitting   How to Measure Your Torso For Backpack Fitting

Product Highlights

A durable, feature-rich day pack or climbing pack, the versatile Mountainsmith Phantom 40 has a breathable, load-hauling (up to 35 lbs) suspension system and convenient panel-loading organizational features.

The Phantom 40 utilizes an innovative suspension system that provides anatomical support and allows freedom of movement for on-trail hauling and off-trail scrambling. A spring steel frame and molded PE framesheet offer excellent load support and a suspended Breezeway mesh backpanel conforms to the contours of your back while allowing airflow to combat heat build-up. Ensuring an appropriate fit for users of varying proportions, the Ghost 50 is available in two sizes. The 2560 cubic inch capacity Small/Medium fits torso lengths ranging from 15"-18" and the Medium/Large (2750 cu in) size accommodates 18"-21" torsos. A pivoting, wrap-around design in the adjustable dual-density waistbelt shifts weight into the lumbar region for a stable, evenly distributed load. Integrated load-lifter straps and an adjustable sternum strap further enhance fit.

A large horseshoe-shaped zipper provides easy access to the main panel-loading compartment of the Phantom 40. A large zippered front pocket provides additional enclosed storage and is separated from the main compartment to provide stash space behind it for extra layers and other gear. Side compression straps with quick release hardware allow you to cinch down your load or lash other gear to the exterior of the pack.

Other features found on the Phantom 40 include ice axe and trekking pole loops, gear attachment loops, side mesh water bottle pockets and an integrated haul handle. A lined internal sleeve, built-in exit ports and an integrated sternum strap bite valve catch combine to make the Phantom 40 hydration system (sold separately) compatible.

The Mountainsmith Phantom 40 internal frame pack is available in your choice of sizes.

Sizes available: Medium/Large, Small/Medium

Mountainsmith part numbers: 12-70049-52, 12-70046-52