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Item # MNS1G201M

Mountainsmith Day (2023) Lumbar Pack

Purchase Day (2023)

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The popularity of lumbar packs seems to vary from generation to generation, but the Mountainsmith Day's popularity has never wavered. Its large carrying capacity, stable ride, and numerous features make it a timeless hiking option.


  • Maximum available storage in a waist-carry pack: There are a lot of rinky-dink lumbar packs out there, but the Day isn't one of them. It offers a full 13 liters (800 cubic inches) of storage space and keeps the weight effectively stabilized.
  • Functional and reliable suspension system: The FreeFlow ridged EVA foam backpanel provides padded support and softens your load while a tuck-away waistbelt with forward-pulling adjustment ensures a proper fit. A removable strap allows you throw the Day over your shoulder and integrated handles let you carry it like a tote.
  • Strapette compatibility for heavier loads: When you're really carrying a lot of weight or want additional stability, you can use Mountainsmith Strapettes (sold separately) to equip the pack with a true shoulder harness.

Check out all of these other special features!
  • Front stash pocket with elastic cord compression
  • Interior foam padded sleeve for tablet carry
  • Smartphone compatible waistbelt pockets (fits plus sized phones)
  • Backpanel stash pocket is ideal for securing a passport, boarding pass, etc.
  • Delta Wing Compression System load adjustment
  • Side reinforced bottle pockets (fits up to 32oz/1L)
  • Inner Sanctum interior zippered compartment for small valuables
  • Bright yellow liner promotes visibility
  • Zippered front panel pocket with key clip
  • Bottom panel compression straps
  • Headphone port

Technical Specs

Best Use
Panel loading
Item Dimensions
13" x 12" x 6"
Fits Waist
28" - 48"
Frame Material
FreeFlow ridged EVA
800 cu in
Limited Lifetime
Lumbar Pack
420 Oxford Nylon, 420 HD Nylon Ripstop, 210D Nylon Liner
Item Weight
1.75 lbs

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