🎒
Ultralight Pack
~$279

Zpacks

Zpacks Nero Pro 40

The Nero Pro is the upgraded Nero: 11.1 oz against the Classic's 9.9, for a $40 premium. The extra weight buys a more robust build in the same frameless, waterproof format across the same 30 to 50 L range.

Approx. price
~$279
Capacity
40 L
Weight
0.69 lbs
Best For
Frameless hikers wanting more durability than the Nero Classic offers
Buy from Zpacks

Price and availability on Zpacks’s site may differ.

Type
Ultralight Pack
Frame Type
Frameless
Capacity
40 L
Weight
0.69 lbs
Max Recommended Load
Not specified by the manufacturer
Torso Fit
See manufacturer sizing
Material
Ultra fabric with waterproof taped seams
Back Panel
Frameless
Warranty
Manufacturer warranty; terms not published
Raincover Included
No
Fits BV500 Bear Canister
No

Sizes Available

CapacityPriceWeight
30 L$279
40 Lthis pack$2790.69 lbs
50 L$279

Features

Hipbelt Pockets

Pros

  • 11.1 oz is still extraordinarily light for a waterproof 40 L pack.
  • More robust construction than the Nero Classic for only 1.2 oz more.
  • Waterproof taped seams throughout.
  • Same three-volume range as the Classic, from 30 to 50 L.
  • Zpacks' Ultra fabric expertise is among the deepest in the segment.
  • Frameless simplicity with nothing rigid to fail.
  • A sensible middle step between the Nero Classic and the framed Arc Haul.
  • Hipbelt pockets included.

Cons

  • $279 is $40 over the Classic for a modest durability gain.
  • Still frameless, so the load rides on the shoulders above roughly 20 lb.
  • No published maximum load figure.
  • No adjustable torso.
  • Laminate fabrics are hard to field-repair.
  • The Classic-versus-Pro distinction is not well explained in Zpacks' own materials.
  • Bear canisters do not fit sensibly at this volume and construction.
  • Warranty terms are not published in detail.

Common Questions

Related backpacks

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Capacity

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Capacity

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Frame

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4.81(1,003)

The Kakwa 55 is Dan Durston's disruptively priced ultralight — under 2 lbs, a 45 lb load rating, and a 2026 update with a redesigned hipbelt, all starting around $200 in UltraGrid fabric. It has become the value benchmark every new UL pack gets measured against.

55 L1.94 lbs45 lb Rating at $200

Weight

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Capacity

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Frame

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~$275
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Weight

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Capacity

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Frame

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🎒
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Weight

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Capacity

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Frame

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