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Description
gossamer gear g4-20 ultralight 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:
- Standard Shipping : 3-10 business days
- 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
4.2 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
Our Yorkie Puppy Loves This Toy!!!
Color: Red
Warning: your pet may become completely obsessed
I’ve had this toy for about a year for my Yorkshire Terrier, Gia, and it’s easily the most successful toy purchase I’ve ever made. We even had to replace the first one after she loved it a little too much (chewed the string off), and have since bought more as gifts for friends’ pets. Great toy for small dogs (too fragile for bigger dogs) and active, young cats.)
What we love:
* Endless engagement: Gia ignores all her other toys and goes straight for this every time
* Interactive features: Subtle beeping + changing colored lights + unpredictable rolling patterns keep her hooked
* Energy burner: Perfect for indoor play on hardwood floors—she will chase it nonstop
* Rechargeable: Battery lasts several hours, even with frequent use
* Durability: Holds up well considering how rough she plays
Real-life note:
Gia will literally bring this toy to me to get me involved—and I have to limit her playtime because she won’t stop on her own.
Bottom line:
If you have a high-energy dog (or even a playful cat), this isn’t just a toy—it becomes their favorite activity… and possibly their entire personality.
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Reviewed in the United States on April 25, 2026
★★★★★ 5
This is a great ball for high energy dogs.
Color: Blue
I have a Belgian Malinois, so you can imagine the Maligator jaws. Just opened this today and let her play with it indoors. She LOVES IT. It wore her out and it’s a toy she can really stay focused on without needing me to throw or roll for her. It moves on its own! I supervised her play. I was hoping it was too big to get under the couch, but no. It goes right under it. I had to block off the gap so I didn’t have to keep getting it out from under for her. The outter “shell” is very durable! When she had resting moments, she chewed it pretty good - I could hear the material squeaking against her teeth. I was worried she was tearing it up, but nope! Not a mark on it. It’s easy to set up and operate. It needed charging before play. After hours of play, she was able to somehow unscrew the outter shell. This concerned me bc the smaller, inner ball mechanism came out but I saw it right away and was able to put it back together. So, make sure it’s screwed together tightly (which I thought I had done without breaking it) and check it from time to time to make sure it hasn’t loosened. This is a great ball for her incredible high energy drive. It gives her the work and fun play she needs to get tired, which I love. This toy is on the expensive end, but so far it’s worth it. Now we’ll see how long it lasts!
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Reviewed in the United States on October 7, 2025
★★★★★ 5
Love love it
Color: Blue
Best dog toy ever. I have a 1 year old boxer who is full of energy (understatement). This ball has provided more entertainment for us both than any dog toy I’ve ever purchased. Charge holds well and has a very resilient shell. I love it. Worth the price.
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Reviewed in the United States on May 23, 2026
★★★★★ 4
Great ball for limited entertainment. Replaceable outer shell is an amazing option!
Color: Blue, Color: Blue
Bought this for our 45lb, ball-obsessed Dutch shepherd/pit bull dog mix. I had one of these years ago with the hard shell and couldn’t be happier with the new foam shell.
The new foam shell is much quieter and while our dog might put holes in it with his teeth, he doesn’t seem to ever pull pieces off.
For engagement level, he found it VERY interesting at first and was scared to grab it, but once he got over that he started holding it in his mouth even when it shakes and just tries to keep it.
Isn’t the best for fetch or anything as he has trouble letting it go when it is actively moving, but it makes him happy while he has it. We just make sure to monitor him while it is out.
The ability to change the outer shell and just buy a replacement for the shell instead of a whole new toy is a lovely feature that makes me very happy to continue buying from this company.
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Reviewed in the United States on April 19, 2026
★★★★★ 5
Great Interactive Option
Color: Blue
To start, I have been very happy with this purchase. A couple of key points for me are durability and being able to keep my dog's attention. I have had it for almost a year, just a month shy, and she hasn't managed to get through the foam outer shell even though she tries real hard to do so. Let's just say, she's hard to find toys for because of her habit of finding the point of failure where she can pick and gnaw at until the toy is no longer safe for her to have. With this toy, she not only found her match, but it also has her watching, waiting, and even stalking. Only one small issue has recently occurred: the motor has started having an issue where the charge doesn't hold, and it doesn't remain on afterwards. I have reached out to Cheerble directly to see about replacing it since I am still within their 12-month timeframe, and they responded right away.
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Reviewed in the United States on April 22, 2026