Zpacks Arc Haul Ultra 50L backpack

Zpacks Arc Haul Ultra 50L - ultralight comfort for long hikes

Zpacks Arc Haul Ultra 50L is a backpack created for those who want to hike long, light and comfortable. It combines extremely low weight, high carrying comfort and exceptional durability, making it an obvious choice for long hikes such as the Green Belt, White Belt, or international long trails such as the PCT and Appalachian Trail.

Made of Ultra 100X™ - an advanced material with UHMWPE fiber laminated to a waterproof backing. The fabric is completely PFAS-free, has very high tear strength and is completely waterproof without the need for chemical coatings. The result: a backpack that withstands both wetness and wear, year after year.

Light, strong and comfortable

The patented carbon fiber Arc Frame provides a unique combination of stability and ventilation.
The curved frame creates an air gap between your back and the pack - keeping you cool and reducing friction. At the same time, weight is efficiently transferred to the hips for optimal carrying comfort even with heavier packs.

With adjustable shoulder length, interchangeable shoulder straps and hip belt, you get a truly customizable fit. This particular variant is with standard shoulder straps

Technical specifications

• Volume: 50 liters (37 L main compartment, 2 × 2.5 L side pockets, 8 L front pocket)

• Weight: 613 grams

• Recommended load: 14-16 kg (max 18 kg)

• Material: Ultra 100X™ (3.3 oz/sqyd UHMWPE laminate)

• Water resistance: Very high (taped seams)

• Frame: Carbon fiber frame, adjustable torso height

• Closure: Roll-top with compression straps

• Pockets: Two large side pockets (1L bottles), stretchy front pocket

• Compatibility: Hydration outlet, hiking pole attachments

• Warranty: 2 years against material and manufacturing defects

All seams and attachment points are taped for maximum water resistance, but we recommend dry bags or packing lines for clothing and sleeping gear.

Award-winning design

The Arc Haul Ultra 50L has been praised by outdoor magazines and hikers around the world.

• The Trek - Best Gear Award 2023
  "One of the best backpacks of the year for long-distance hikers."

• Section Hiker - Top Pick
  Recommended for durability and fit.

• Adventure Alan - Top Pick
  Highest rating for the combination of weight, comfort and function.

• BikeHike - Editor's Choice
  "A versatile and premium ultralight backpack."
  
  "An absolute pleasure cruiser in terms of comfort and carry." - Russ P

Find your perfect fit

Torso Height

1. Put a belt on where you want the backpack waist belt to sit.

2. Measure from the center of the belt in your back to the C7 vertebra at the base of your neck.

3. Most adults fit medium. Load the backpack when trying it on for the right feel.

Waist belt (Belt Size)

Measure the circumference around the waist where the belt will sit. Choose a size that's a few inches smaller than your actual measurement - that way there's room to tighten.
The Arc series has interchangeable belts, so you can adjust or change if necessary.

Shoulder Straps (Shoulder Straps)

The standard straps are 7 cm wide, form-fitting and padded with 1 cm closed cell foam.
The 3D mesh underside provides ventilation, and the daisy chain system lets you attach pockets and bottle holders.
Chest straps and load lifter straps help you keep the backpack close to your body for stability.

Who it's for.

For those who want to:

• Hike far with minimal weight and maximum comfort

• Have durability without compromise

• Be able to adjust the fit exactly to your body and load

Zpack's Arc Haul Ultra 50L is proof that ultralight doesn't mean compromise - it means freedom.