Big Dry Bag

$39.95 USD Weight 0.71 oz / 20.0 g

Lead Time Ships in 1-3 Days

I love this dry bag. I needed one for my handlebar harness while bikepacking. It’s perfect. I can fit my duplex, tent poles, stakes, sleeping pad and pillow in it. Zpacks isn’t just for backpacking!!!

– Andrew L., ★★★★★

Stop the elements from soaking your gear. The ‘Big’ size dry bag has extra space for bulky clothes or a larger sleeping bag. The girth will fit horizontally in deeper packs.

Need a different size?  Check out the rest of our Dry Bag collection.

  • Constructed from black 1.0 oz/sqyd Dyneema® Composite Fabric which is inherently waterproof and abrasion resistant. By comparison our regular Stuff Sacks are made from thinner .55 oz/sqyd material.

  • Fully taped seams. Our dry bags will keep water out in typical backpacking conditions where the bag is not submerged.

  • The bags have a stiffened opening to make rolling the top down easy and secure.

  • Squeeze out the air and roll down the top to compress your gear as needed.

  • Also check out our Zip Pouches for water and abrasion protection for your smaller items like your wallet, camera, phone, passport, glasses, etc.

  • 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.

Flat Dimensions: 12.25" wide x 19.5" tall (31 cm x 49.5 cm)

Full Dimensions: roughly 8" diameter by 13" tall (20.3 cm x 33 cm)

Volume: 650 cubic inches / 10.7 Liters

Weight: 1.0 oz. / 28 grams

Made with Bio-Based Dyneema® Fiber

Reduce your carbon footprint with 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.



1.0 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 oz/sqyd Dyneema® Composite Fabric has a thicker membrane giving it more abrasion resistance. We use it for dry bags and tent floors.


Tensile Strength:
 104 lb/in (911 N/5cm)

Puncture Strength: 3.5 lb (15.5 N)

Water Resistance: 20,000 mmH₂O

Made in the USA.