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G4-20 Ultralight 42 Backpack

G4-20 Ultralight 42 Backpack

$205.00
$205.00
OFF Sold out
Color: Tropical Mist
Size
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G4-20 Ultralight 42 Backpack
Tropical Mist / S

New Features

  • Recycled Robic Nylon

    As part of Gossamer Gear's commitment to reducing our environmental impact, we are transitioning to PFAS-free recycled fabrics across all of our packs.

  • Refined Hardware

    Each buckle, zipper, and cord has been scrutinized for lightweight function. Get ready to meet a simple, cost-effective pack designed to lighten your load.

  • New Colorways

    Our fan favorite Tropical Mist colorway is now available for the G4-20! We're stoked to bring you more vibrant option for showing your style on trail.

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Product Details

Gear Notes

We took what made the original “G4” so popular and roped in a gang of new fabrics and materials to create a frameless, do-it-all companion for thru-hikers and weekend warriors.

 The G4-20 is made for ease on trail. Each buckle, zipper, and cord has been scrutinized for lightweight function. Get ready to meet a simple, cost-effective pack designed to lighten your load.

Sizing & Fit

Torso length:
Start at the C7 vertebra at the base of your neck. The best way to find this is to bend your neck and feel the first bump along the base of your neck. This bump is where you will want to start your measurement. 
Next, you'll want to find the midpoint between your iliac crest. To find your iliac crest, cup your hipbones on both sides and find the center point on your spine. This midpoint is where your thumbs should be pointing. 
Finally, you'll need help measuring from the C7 vertebra to your iliac crest. From there, you'll have your torso measurement. 

Torso Fit Illustration
If you're in between sizes, you will want to 
    + Size down for more of a shoulder wrap and higher hipbelt 
    + Size up for a lower hipbelt fit

Hip Measurement: 
You will want to find your iliac crest again by cupping your hipbones on both sides. Then, wrap a soft measuring tape or string around the top of your iliac crest. This will tell you your hip measurement. 

Small:
Torso - 11.5" - 15.5"
Hip - 25" - 35" 

Medium:
Torso - 15.5" - 19.5" 
Hip -  30" - 42" 

Large:
Torso - 19.5" - 23.5"
Hip - 32" - 50"

  • 42L capacity
  • Extendable roll-top with dual-closure options
  • Removable, molded, cushy sitpad
  • Fixed hipbelt with unique pocket design
  • 1.5” hipbelt webbing for max comfort
  • Tough recycled Robic fabric

Pack Body 19.8 oz / 561 g

Sitlight Pad 2.3 oz / 65 g

Total 22.1 oz / 627 g

Length 19.5” (to extension collar seam)

Width 11.4”

Depth 4.7”

Pack Body 21.5 oz / 610 g

Sitlight Pad 3.3 oz / 94 g

Total 24.8 oz / 703 g

Length 23.6” (to extension collar seam)

Width 11.4”

Depth 4.7”

Pack Body 22.2 oz / 629 g

Sitlight Pad 3.6 oz / 102 g

Total 25.8 oz / 731 g

Length 25.6” (to extension collar seam)

Width 11.4”

Depth 4.7”

Total 42 L

Main Pack Body to Bottom of Extension Collar 30 L

Mesh and Side Pockets 12 L

Max Carry Capacity 30 lbs

For Comfort 25 lbs

**The volume capacity specs are specific to a medium size pack. Capacity will vary slightly between sizes

70D & 100D Recycled Robic Nylon

PFAS-free

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