Zpacks Pack Liner
This full size roll top dry bag protects the entire internal contents of your backpack. This is a good option if you prefer to use non-waterproof stuff sacks instead of individual dry bags. It is also nice as an extra layer in very wet environments. Multiple sizes are available.
This is also available in a heavier material with a handle for dual-use as a protective Airplane Case for checking your backpack on an airplane.
- Constructed from black 1.0 oz/sqyd Dyneema® Composite Fabric which is inherently waterproof and abrasion resistant.
- Fully taped seams. Our pack liner 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.
- Made in the USA.
Small
Flat Dimensions: 17" wide x 32" tall (43 cm x 81 cm)
Full Dimensions: roughly 6" x 11" x 25" (15 x 28 x 63.5 cm)
Volume: Around 1650 cubic inches (27 Liters)
Fits the main body of our 40L and smaller backpacks.
Medium
Flat Dimensions: 19.5" wide x 38.5" tall (49.5 cm x 98 cm)
Full Dimensions: roughly 7.25" x 12.5" x 29" (18 x 32 x 74 cm)
Volume: Around 2,800 cubic inches (44 Liters)
Fits the main body of our 50-60L backpacks.
Large
Flat Dimensions: 22" wide x 38.5" tall (43 cm x 98 cm)
Full Dimensions: roughly 9.5" x 12.5" x 29" (24 x 32 x 74 cm)
Volume: Around 3300 cubic inches (57 Liters)
Fits the main body of our 70L backpacks.
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 Bio-Based Dyneema® Fiber.
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.


































