G4 Ultralight Backpack

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Quick Overview

The original – a  larger volume rucksack style pack (frameless) suited for any Ultralight load up to 30lbs. and especially good for  winter camping.


The G4™ Ultralight Backpack is one of the "granddaddies" of ultralight packs. First designed in 1998, the free downloadable instructions have been used by hundreds of do-it-yourselfers, making it the all time most-requested pattern from Quest Outfitters.  The pack features a detachable hip belt to better fit more folks and to increase the carrying capacity of the G4™ without adding weight. The G4™ is designed to effectively incorporate the "dual use" technique of ultralight backpacking. Your sleeping pad  becomes the pack frame by inserting into the back of the pack. ( We recommend the Nightlight Torso ) This way it can be extracted during rest stops to sit/lay on without unpacking your pack.

The bottom of the pack "flares" out to provide more area for your sleeping bag to minimize loss of loft from overstuffing. The HUGE side pockets will hold, as an example, two 2-liter soda bottles on EACH side! A generous mesh pocket on the back of the pack gives you a place to put sodden items where they won't dampen the other contents of your pack. Multiple lashing straps allow you to hang socks out to dry or secure loose or wet items onto the outside of the pack. A top lashing strap helps secure a rolled sleeping pad or similar gear to the top of the pack. Most common bear canisters will fit in the pack horizontally.

This pack is recommended for loads of 30 pounds or less.

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  • Small: 16 oz. (454 g.)
  • Medium: 16.5 oz. (468 g.)
  • Large: 17 oz. (482 g.)


  • 4,000 c.i. (66 l.) total
  • 3,200 c.i. (52 l.) in main pack body/extension collar
  • 800 c.i. (13 l.) in all pockets combined
  • 30 lb. maximum carry capacity


  • Small (13" - 16" torso) (33 - 43 cm.)
  • Medium (16" - 20" torso) (41 - 51 cm.)
  • Large (20" - 24" torso) (51 - 61 cm.)


  • 70 denier 2.2 oz. per sq. yd. (74.7 g. per sq. m.) urethane-coated ripstop nylon
  • Selected use of 210 denier 4 oz. per sq. yd. (135.7 g. per sq. m.) urethane-coated double wall ripstop nylon
  • All pockets now made with 5 oz. power mesh


  • Forest Green or Black

Dimensions  (size medium – small is 2 inches shorter and large is 2” taller)

  • Height 22”
  • Width 11”
  • Depth 8“
  • Extension collar adds another 10” in height

Options:  Hip Belt Size

  • Small hip belt (25" - 30" waist) (64 - 76 cm.)
  • Medium hip belt (30" - 35" waist) (76 - 89 cm.)
  • Large hip belt (35" - 42" waist) (89 - 107 cm.)

•    Extra-large capacity mesh side pockets
•    Rear mesh pocket great for drying gear and other gear storage
•    Expanded sleeping bag storage area for use with large fill sleeping bags
•    Detachable hip belt system with 3 different hip belt sizes
•    Plenty of sewn-in loops, shock cord and cord locks for many compression options
•    Pad holder pockets uses pad as additional frame
•    Removable foam inserts for hip belts
•    Hip belts accept unused clothing as padding
•    Sternum strap with integrated whistle buckle is adjustable and removable
•    Grosgrain drinking tube keeper loop are on shoulder straps
•    Drinking tube ports are in side panels
•    Haul loop is incorporated for picking up pack
•    Center lashing loop doubles as ice axe holder

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