Skip to content
Wild10

Copper Spur HV UL2 vs Duplex

top ten:best backpacking tents thru hikes multi day trips

Choosing an ultralight backpacking tent means balancing weight, durability, and livability. The Big Agnes Copper Spur HV UL2 and the Zpacks Duplex represent two titans in this niche, each approaching the 'lightweight' philosophy from a different angle. The Copper Spur is a freestanding, semi-double-wall tent that prioritizes comfort and traditional tent features at a remarkably low weight. In contrast, the Zpacks Duplex is a minimalist, non-freestanding shelter designed for ounce-counting thru-hikers, leveraging trekking poles for support and featuring a single-wall construction. Your decision hinges on whether you prioritize freestanding convenience and robust features or the absolute lightest possible packed weight and a more minimalist setup, often with a higher price tag. Let's dive into the specifics to help you make an informed choice for your next adventure.

Spec-by-Spec

SpecCopper Spur HV UL2Duplex
Weight2 lbs 6 oz (trail weight)1 lb 4.7 oz (with guylines, without stakes/poles)
Capacity/Size2-person (29 sq ft floor + 18 sq ft vestibules)2-person (28 sq ft floor + 20 sq ft vestibules)
MaterialsNylon ripstop (tent body), silicone-treated proprietary fabrics (fly/floor)0.55 oz/sqyd Dyneema Composite Fabric (DCF)
Price TierMid-to-High (approx. $550)High-End (approx. $700)
WarrantyLifetime against manufacturing defects2-year for materials and workmanship
Best Use3-season backpacking, car camping, casual trips3-season thru-hiking, ultralight backpacking
PortabilityExcellent (packs small, includes pole bag)Exceptional (packs extremely small, no dedicated poles)
DurabilityGood (proprietary fabrics, good storm resistance)Good (DCF is highly tear-resistant, waterproof)
Feature HighlightsFreestanding, double vestibules/doors, media pockets, awning-style vestibulesTrekking pole supported, integrated bug netting, fully enclosed, storm-proof design

Copper Spur HV UL2

Best for: The general ultralight backpacker prioritizing comfort, ease of use, and freestanding versatility.

Pros

  • Freestanding design offers easy setup and pitching on various terrains.
  • Excellent livability with near-vertical walls, two doors, and two large vestibules.
  • Integrated media pockets, gear lofts, and internal storage enhance organization.
  • Awning-style vestibules provide sheltered cooking/lounging space in light rain.
  • Semi-double-wall construction offers better condensation management.

Cons

  • Not as light as dedicated ultralight shelters like the Duplex.
  • Nylon fabrics absorb some water and can sag when wet.
  • Higher price point than many traditional 2-person tents.
  • Proprietary poles can be difficult to repair in the field if damaged.

Duplex

Best for: The minimalist thru-hiker or extreme ounce-counter prioritizing the absolute lightest weight and smallest packed size.

Pros

  • Incredibly lightweight, one of the lightest fully enclosed 2P shelters available.
  • Packs down extremely small, ideal for minimalist packing.
  • Dyneema Composite Fabric (DCF) is incredibly strong, waterproof, and doesn't sag when wet.
  • Excellent wind and storm performance when pitched correctly.
  • Quick and straightforward setup once familiar with trekking pole pitching.

Cons

  • Requires trekking poles for setup (or dedicated poles purchased separately).
  • Non-freestanding design can be challenging to pitch on rocky or sandy ground.
  • Single-wall construction can lead to more internal condensation in certain conditions.
  • DCF material is crinkly/noisy and requires careful handling to avoid punctures.
  • Higher initial cost and long lead times for custom orders.

The Verdict

For most backpackers seeking an ultralight yet comfortable experience, the **Big Agnes Copper Spur HV UL2** is the clear winner. It offers a near-perfect blend of low weight, exceptional livability, and the convenience of a freestanding design. Its generous interior space, dual doors, and versatile vestibules make it a joy to use on the trail, accommodating a wider range of camping styles and terrains. However, for the dedicated thru-hiker or extreme ounce-counter, the **Zpacks Duplex** shines supreme. Its unparalleled weight savings and tiny packed size are unmatched, making it the top choice when every gram counts, provided you're comfortable with a non-freestanding, trekking-pole-supported setup and the distinct characteristics of Dyneema. Choose the Copper Spur for general ultralight comfort; opt for the Duplex if absolute minimal weight is your paramount concern.