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Mountainsmith Phantom 40 Pack

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  • Innovative suspension sports a hipbelt and lumbar pad that accentuate your body's natural ability to bear weight on the hips and lumbar region
  • Hipbelt wraps around the iliac crest on your hips with upper and lower webbing, utiziling the entire surface area for a secure and comfortable fit
  • Perforated shoulder straps promote cooling airflow; thoughtfully positioned padding helps disperse the load across a wide area for enhanced comfort
  • Back panel features an off-the-back air-mesh trampoline sling for breathability; it helps distributes weight to the hips and lumbar region instead of the shoulders
  • The Mountainsmith Phantom 40 pack organizes all your weekend essentials with the panel-loading main compartment, front stash pocket and mesh side and hipblet pockets


Item 845203

REI Membership

Mountainsmith Phantom 40 Pack Specs
Best use
Lightweight backpack
42 / 45 liter
2,560 / 2,750 cubic inches
3 lbs. 9 oz. / 3 lbs. 13 oz. ounces
1.6 / 1.7 kilograms
15 - 18 / 18 - 21 inches
28 - 52 / 30 - 54 inches
High tenacity ripstop nylon
Polyethylene framesheet/spring steel perimeter hoop
6 + main compartment
Frame type
Backpack style
Gear capacity (L)
Gear capacity (cu. in.)
Weight - metric
Adjustable torso
Fits torso
Fits waist/hips
Frame material
Number of stays
Suspended mesh back panel
Pack loading
Pack access
Number of exterior pockets
Sleeping bag compartment
Raincover included

Mountainsmith Phantom 40 Pack

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