gossamer gear g4-20 ultralight 42 G4-20 Ultralight 42 by Gossamer Gear
SKU: 54243668725
gossamer gear g4-20 ultralight 42

gossamer gear g4-20 ultralight 42 G4-20 Ultralight 42 by Gossamer Gear

Sale price$18.11 Regular price$20.12
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Ships within 48 hours · Estimated delivery Jun 29 - Jul 4

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Description

gossamer gear g4-20 ultralight 42 G4-20 Ultralight 42 by Gossamer GearShips in 1 2 business days Based in Austin, TX Est. 1998 Made for ease on the trail The G4 20 is a tip of the hat to an OG pack. Gossamer Gear took what made the original "G4" so popular and roped in a gang of new fabrics and materials to create a minimal do it all frameless pack. Each buckle, zipper, and cord has been scrutinized for lightweight function. Features: Frameless Fixed hip belts with pockets and 1. 5" webbing PFAS free recycled fabric


Ships in 1-2 business days | Based in Austin, TX | Est. 1998

Made for ease on the trail

The G4-20 is a tip of the hat to an OG pack. Gossamer Gear took what made the original "G4" so popular and roped in a gang of new fabrics and materials to create a minimal do-it-all frameless pack. Each buckle, zipper, and cord has been scrutinized for lightweight function. 

Features:

  • Frameless
  • Fixed hip belts with pockets and 1.5" webbing 
  • PFAS-free recycled fabric
  • Extendable roll-top with dual closure options
  • Over-the-top compression strap
  • Side shock cord four-point compression straps
  • Zippered front pocket
  • Easy access side pockets
  • Large front mesh pocket
  • Removable, molded sitpad
  • Hydration sleeve
  • Bottom gear loop and easy trekking pole stashing loops

_______________________________________________

      Specs

      Volume: 42L

      • Main body to bottom of extension collar: 30L
      • Mesh and Side Pockets: 12L

      External Pockets: 6

      Recommended Load Capacity: 30lbs

      Sizing:

      • Small: 17.25" (11.5"-15.5" torso) | 43.8cm (29.2cm - 39.4cm)
      • Medium: 20.25” (15.5"-19.5" torso) | 51.4cm (39.4cm - 49.5cm)
      • Large: 23.25” (19.5"-23.5" torso) | 59.1cm (49.5cm - 59.7cm)

      *See our backpack sizing page to learn how to fit a backpack

      Weight: 

      • Small: 20.4oz | 578g (pack), 23.2oz | 658g (with sitpad)
      • Medium: 21.7oz | 675g (pack), 25oz | 709g (with sitpad)
      • Large: 22.4oz | 635g  (pack), 26.1oz | 740g (with sitpad)

      Dimensions: 11" wide x 5.5" deep x 19.25-25" (depending on size) long | 27.9cm x 14cm x 48.9 - 63.5cm

      • Extension collar height: 9" | 22.9cm

        Materials: 70D & 100D Recycled Robic Nylon DWR coating. PFAS-Free.

        Made in Vietnam

        ***Discounts are not available on Gossamer Gear products.

          Shipping Notes
          • Free Standard Shipping on $100+ Orders to the USA.
          • Except Preorder products are shipped in 48 hours.
          • Delivery to the USA:
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          • If time is of the essence, please consider selecting expedited delivery for faster service.
          Exchange/Return Notes
          • We offer a 30-day return/exchange service after receiving.
          • Final sale items are not eligible for returns or exchanges.
          • To process your return/exchange, please contact us at [email protected]
          • Please click here for more details>>> Return & Exchange Policy
          SKU: 54243668725

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          4.2 ★★★★★
          Based on 1019 reviews
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          Product Reviews
          C
          Verified Purchase
          Carb was beautiful once I got it tune in, cranks great runs smooth I would buy it again if needed
          West Palm Beach, US
          ★★★★★ 5
          For motorcycles
          Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
          Great stuff, good price
          WAS THIS REVIEW HELPFUL?YesReportShare
          Reviewed in the United States on April 25, 2026
          J
          Verified Purchase
          JNL
          Houston, US
          ★★★★★ 5
          The best lower unit gear oil I have used
          Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
          I have been boating my whole life, this is by far the best gear oil. I use this in my Johnson 115 even though this is technically made by Mercury. I seem to get less if any water intrusion into my gearcase with this oil. If there is any, the oil emulsifies the water and continues to protect the gears. I have had better luck with this than Pennzoil marine or others. Highly recommend. It is a blue color and easy to drain and fill.
          WAS THIS REVIEW HELPFUL?YesReportShare
          Reviewed in the United States on March 23, 2026
          D
          Verified Purchase
          Debra
          Pawtucket, US
          ★★★★★ 5
          Great
          Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
          Great lube for the boat
          WAS THIS REVIEW HELPFUL?YesReportShare
          Reviewed in the United States on May 19, 2026
          J
          Verified Purchase
          Joshua Murray
          Houston, US
          ★★★★★ 5
          recommend
          Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
          great price
          WAS THIS REVIEW HELPFUL?YesReportShare
          Reviewed in the United States on May 22, 2026
          C
          Verified Purchase
          Christopher C.
          West Palm Beach, US
          ★★★★★ 4
          Does not come with a pump.
          Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
          The Good: Changing the fluid in the lower unit is a very easy DIY job. This can save you hundreds of dollars each year by doing it yourself. The Bad: You need a special pump to change the oil, and sometimes it comes with the gear lube. Unfortunately this product did not come with it. Luckily my neighbor had an extra one from changing the lube a different boat laying around and was able to use that. The Ugly: If you have to go get the pump, that could cost a few extra dollar but is just an extra nuisance. The pumps are interchangable but you just need to clean it between uses (DON'T MIX DIFFERENT OIL BRANDS)
          WAS THIS REVIEW HELPFUL?YesReportShare
          Reviewed in the United States on October 28, 2025

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