Rock Stuff Sack

11 reviews
$14.95 Weight 0.13 oz / 3.7 g

Lead Time Ships in 1-3 Days

Great, durable rock sack. Don’t waste time trying to tie string around a rock. Perfect for storing cord, too. Keeps bears safe!

– Alex D., ★★★★★

Make bear bagging easy with this rock sack. Just put a small rock, sand, or gravel in it, tie your bear line to it, and toss it over a branch. Constructed from ultralight but durable 1.6 oz/sqyd Dyneema® Composite Fabric to resist abrasion and punctures.

This is also available as part of a Bear Bagging Kit .

Need a different size? Check out the rest of our Stuff Sack collection.

  • Constructed from 1.6 oz/sqyd Dyneema® Composite Fabric which is thicker and stronger than our other stuff sacks to resist abrasion and punctures.

  • Stuff sacks can easily be patched with Dyneema® Composite Fabric Tape.

  • Also check out our Dry Bags for a slightly heavier, but more abrasion and water resistant way to protect your critical items from the elements.

  • All Zpacks gear has a two year limited warranty against defects in materials or workmanship. Please see our return / warranty policy.

  • Made in the USA.

Full / Closed Dimensions:

2.5" x 2.5" x 2.5" (6.5 cm round)

Made with Bio-Based Dyneema® Fiber

Reduce your carbon footprint with DSM’s bio-based Dyneema® fiber technology. Sourced from renewable, bio-based feedstock, it is the first ever bio-based ultra-high molecular weight polyethylene (HMPE) fiber. Commit to sustainability and help reduce our reliance on fossil fuel resources and rely on the trusted performance of the world’s strongest fiber™. Click here to learn more about our sustainability initiatives.

Made in the USA.

1.6 oz/sqyd Dyneema® Composite Fabric

Dyneema® Composite Fabric is composed of high strength Dyneema® fiber laminated inside a polyester membrane. It is inherently waterproof and does not require any coatings or DWR treatment. Dyneema® Composite Fabric has very high tensile strength for its weight and does not stretch.

1.6 oz/sqyd Dyneema® Composite Fabric has a thicker membrane and a higher Dyneema® fiber count. This fabric weight has excellent abrasion and puncture resistance.

Tensile Strength:
 210 lb/in (1840 N/5cm)

Puncture Strength: 5.2 lb (23 N)

Water Resistance: >20,000 mmH₂O

Made in the USA.
Customer Reviews
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  • prefect size
  • overmitts
  • buffalo wool gloves
  • limb
  • choice
  • carabiner
  • sand
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  • dirt
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Sean T.
United States United States

Rock Stuff Sack

Works great! Simple yet innovative time saver.

jason h.
United States United States

Great little rock sack

Great idea for a product. You can fill it with rocks or sand/dirt and easily and throw over your limb of choice. When stuffed it's about the size on a tennis or baseball, perfect size for throwing, When not it use it's prefect size to stuff the 50ft. cord for throwing/hanging your bear bag and a carabiner. The Dyneema fabric is very tough and abrasion resistant so should last a long time but also easy to fix with tape if it does tear. And like all of Zpacks products it's super light!!

TIm H.
United States United States

Nifty sack.

Excellent construction holds my buffalo wool gloves and waterproof breathable overmitts.

Tyler S.
United States United States

Beautiful customer service

They gave me green to match the food bag I've already bought!!!! I love it, the best customer service is one that fix and help customers before they knew they wanted it. Zpacks is the greatest.

Sierra B.
United States United States

good product

rock stuff sack is lightweight and made with sturdy material to hold potentially abrasive and heavy material