Mariposa Ultralight Backpack

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Quick Overview

The 5th generation of our flagship backpack with an all new ergonomic unisex harness.   A tough, large volume, Ultralight backpack with a removable internal frame, load lifters, and 7 built in pockets that is good for just about any kind of backpacking trip, especially the long haul.


The Mariposa™ Ultralight backpack,  is absolutely loaded with size, features, pockets, and new materials.  Built on the same basic platform as previous iterations we have upgraded it for fit, comfort, durabilitly, functionality, and feature set. 

The Mariposa™ is constructed largely of our custom 100 and 200 denier Robic nylon fabric for a sweet spot  blend of toughness and weight.  New for this model as a completely revamped unisex harness, which coupled with our new plush padded hipbelt with integrated pockets makes for a comfortable functional ride.  The Mariposa™ has 7 exterior pockets for loads of options for organizing and accessing your gear. The Mariposa™ Ultralight is a top loader and utilizes our OTT™ (over-the-top) closure system for a simple, solid, secure closure that also includes our largest zippered top pocket.   Inside the pack you'll find an updated version of our proprietary  removable stay.   At just over a pound and a half complete, the Mariposa™ remains Ultralight to the core and is tougher and more feature rich than ever. 

The Mariposa™ ultralght backpack is a LARGE volume pack that is suitable for most any type of backpacking trip.  The Mariposa™ is best with loads under 30lbs but will handle up to 35 just fine.  It comes with a SitLight™ pad, removable stay, and one meter of cord and 2 cordlocks.  The belt is sold separately to allow customers to choose the size they need.

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  • X-Small 24.4 ox (692 g.) Average Total for all items included
  • Small: 27.5 oz ( 751 g. ) Average Total for all items included
  • Medium: 29.1 oz. (825 g.)  Average Total for all items included 
  • Large: 29.6 oz. (839 g.)  Average Total for all items included
  • X-Large 32.8 oz (929 g.) Average Total for all items included

Item includes:

  • Item weights  for a Medium Mariposa with a Medium Hip Belt
  • Pack Body = 17.5 oz (496 g) (Average for medium size)
  • Removable hip belt = 6.2 oz. (175 g.) (Average for medium size)
  • Aluminum curved stay = 3.5 oz. each (99 g.) (Average for medium size)
  • Sitlight Pad  = 1.7 oz  ( 48 g. ) (Average)
  • 1 meter of cord and 2 cordlocks .2 oz (6 g.)

Capacity (Size Medium)

  • 4,244 c.i. (69.5 l.) total
  • 2,860 c.i. (47.0 l.) in main pack body/extension collar
  • 1,384 c.i. (22.0 l.) in all 7 pockets combined
  • 35 lb maximum carry capacity


  • X-Small (10"-13" torso) (25.4 - 33 cm.) {Generally fits people 4' to 4' 11" , depending on body type and how you wear your pack}
  • Small (13" - 16" torso) (33 - 41 cm.)  {Generally fits people 4' 11" to 5' 4" , depending on body type and how you wear your pack}
  • Medium (16" - 19" torso) (41 - 48 cm.)  {Generally fits people 5' 4" to 5' 9" , depending on body type and how you wear your pack}
  • Large (19" - 22" torso) (48 - 56 cm.)  {Generally fits people 5' 9" to 6'2" , depending on body type and how you wear your pack}
  • X-Large (22" - 25")  ( 56 - 63.5 cm.)  {Generally fits people 6'2 " to 6'7"ish, depending on body type and how you wear your pack}


  • 100 denier Robic High Tensil strength nylon
  • Select use of 200 denier Robic High tensil strength nylon.
  • Select use of 70 denier double-rip ripstop nylon
  • Select use of Darlington Mesh
  • Select use of Supreme Air Mesh
  • Select use of Foam


  • Grey and Blue


Hip Belt Size

  • X-Small hip belt (22" - 28" waist (55.88 - 71.12 cm.) (No pockets)
  • Small hip belt (25" - 32" waist) (64 - 81 cm.)
  • Medium hip belt (32" - 38" waist) (76 - 96.5 cm.)
  • Large hip belt (38" - 44" waist) (91.4 - 112 cm.)
  • X-Large hip belt  (44"-60") (107 - 152 cm.)


(size medium)  

The X-Small is 4 inches smaller than the medium. The small is 2 inches shorter, the large is 2 inches taller and the X-Large is 4 inches taller than the medium

  • Height 23” to the extension collar only
  • Width 11”
  • Depth 7.5"
  • Extension collar adds another 9” of height
  • 7 built in pockets for plenty of storage options ( 4 pockets on X -Small
  • RIght side mesh bottle pockets accessible without taking off pack
  • Durable stretch mesh big back pocket with a Robic nylon bottom
  • Power mesh pad holder back panel
  • Custom air mesh fabric on shoulder straps and hip belt for less friction and more comfort
  • New trekking pole hardware for storing them outside the pack
  • New OTT™ (Over-the-Top) closure system provides an easy secure closure
  • OTT™ includes our new zippered top pocket
  • Rear mesh pocket great for drying gear and other gear storage
  • Detachable hip belt system with 5 different hip belt sizes
  • New hip belt system includes built-in pockets (none on X-Small)
  • New hip belt system is taller and more comfy
  • Plenty of sewn-in loops, cord and cord locks for many compression options
  • Pad holder pockets uses pad as additional support
  • Ergonomic harness
  • Harness includes multiple attachment points for accessorizing
  • Sternum strap with integrated whistle buckle is adjustable and removable
  • Grosgrain drinking tube keeper loop are on shoulder straps
  • Haul loop is incorporated for picking up pack
  • Center lashing loop doubles as ice axe holder
  • Includes new updated removable internal stay system
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