Big Agnes Copper Spur UL2 vs Six Moon Designs Lunar Solo Backpacking Tent

Editorial Team
Last modified at May 17, 2026
Choosing the right backpacking tent can make or break your outdoor experience. In this comparison, we look at two top contenders: the Big Agnes Copper Spur UL2 and the Six Moon Designs Lunar Solo Backpacking Tent. Both tents are designed for backpackers who prioritize weight and durability, but they cater to slightly different needs. The Copper Spur UL2 is a great option for those who need a bit more space and ease of setup, while the Lunar Solo is ideal for solo adventurers looking for an ultralight option with excellent ventilation.

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Big Agnes Copper Spur UL2Six Moon Designs Lunar Solo Backpacking Tent
Big Agnes Copper Spur UL2Lunar Solo Backpacking Tent
Weight

2.82 lb

1.625 lb

Floor Area

29 sq ft

26.25 sq ft

Number Of Doors

2

1

Material

ultralight nylon double rip-stop fabric

Canopy: 20D Silicone Coated Polyester
Floor: 40D Silicone Coated Polyester

Stakes

eight 6 in. Dirt Dagger™ UL stakes

6 (Sold Separately)

Warranty

limited warranty against manufacturing or material defects

Lifetime Support

Vestibule Size

9 + 9 sq ft

8.5 sq ft

Pole System

DAC Featherlite NFL, NSL and pressfit poles

Single 49 in Hiking Pole

Packed Dimensions

19.5 × 4 in

11 × 4.5 in

Number Of Vestibules

2

1

Headroom

40 in

48 in

Fabric Type

Proprietary HyperBead™ fabric; 15D nylon with 20D solution dyed ripstop

Silicone Coated Polyester

Zipper Placement

dual zippers

Side Entry

Durability

Big Agnes Copper Spur UL2

4.4/ 5.0

Lunar Solo Backpacking Tent

4.3/ 5.0

Durability is crucial for backpacking tents as it ensures your shelter can withstand the rigors of the trail and various weather conditions. A more durable tent means fewer worries about wear and tear over time, which is especially important for long-distance backpackers. The Big Agnes Copper Spur UL2 excels with its reinforced materials like injection-molded poles and tip-lock buckles, which hold up well in wind and rain. The Six Moon Designs Lunar Solo also offers proven resistance to wear and tear with its 20-denier polyester fly and 40-denier floor, along with silicone-coated fabric that doesn’t absorb moisture or sag in wet conditions. Both tents are highly durable, but the Copper Spur UL2 has a slight edge due to its upgraded features increasing durability.

Comfort

Big Agnes Copper Spur UL2

4.4/ 5.0

Lunar Solo Backpacking Tent

4.7/ 5.0

Comfort in a backpacking tent is about having enough space to move around, store gear, and get a good night's sleep. A more comfortable tent can make your trip more enjoyable, especially during extended stays. The Six Moon Designs Lunar Solo stands out with its extremely wide interior that fits 25-inch pads and offers extra room for gear or even a dog. The thoughtful door design and rear bump-out make entry, exit, and storage effortless. The Big Agnes Copper Spur UL2, while roomy enough for two with excellent headroom and thoughtful storage pockets, doesn't quite match the Lunar Solo's exceptional livability for solo backpackers.

Weather Resistance

Big Agnes Copper Spur UL2

4.6/ 5.0

Lunar Solo Backpacking Tent

4.4/ 5.0

Weather resistance is essential for staying dry and comfortable in various conditions, from heavy rain to strong winds. A tent with better weather resistance ensures you stay protected and dry, which is crucial for safety and comfort. The Big Agnes Copper Spur UL2 has a rain fly with its own pole and waterproof fabric that keeps you dry even in heavy downpours, though a few users noted minor seepage in extreme conditions. The Six Moon Designs Lunar Solo features a pyramid shape that sheds wind from all angles and a tall bathtub floor with silicone-coated polyester to keep you dry in heavy rain or snow. While both tents handle weather well, the Copper Spur UL2's rain fly gives it a slight advantage.

Ventilation

Big Agnes Copper Spur UL2

4.2/ 5.0

Lunar Solo Backpacking Tent

4.4/ 5.0

Good ventilation in a backpacking tent helps reduce condensation and keeps the interior comfortable, especially in humid conditions. Better ventilation means a more pleasant sleeping environment and less moisture buildup inside the tent. The Six Moon Designs Lunar Solo excels with its giant peak vent and adjustable door ventilation, providing excellent airflow and reducing condensation even in humid conditions. The full perimeter netting further improves circulation. The Big Agnes Copper Spur UL2, while featuring mesh panels and a breathable design, has slightly limited airflow in humid conditions compared to the Lunar Solo.

Ease Of Setup

Big Agnes Copper Spur UL2

4.8/ 5.0

Lunar Solo Backpacking Tent

3.7/ 5.0

Ease of setup is important for backpackers who want to spend less time pitching their tent and more time enjoying the outdoors. A tent that is easier to set up can be a significant advantage, especially after a long day of hiking. The Big Agnes Copper Spur UL2 shines with its freestanding design and intuitive pole connections, making it one of the quickest tents to pitch, even for beginners. The Six Moon Designs Lunar Solo, while lightweight, requires some practice to dial in the perfect pitch due to its trekking pole design. Once mastered, it goes up in about two minutes, but the Copper Spur UL2 is clearly easier to set up.

Weight

Big Agnes Copper Spur UL2

4.7/ 5.0

Lunar Solo Backpacking Tent

4.7/ 5.0

Weight is a critical factor for backpackers who need to minimize their pack weight without sacrificing durability and comfort. A lighter tent can make a significant difference on long treks, reducing fatigue and allowing for more gear or supplies. The Six Moon Designs Lunar Solo is one of the lightest trekking pole tents available at just 740 grams, making it ideal for ultralight backpackers. The Big Agnes Copper Spur UL2, while slightly heavier at just over 2.8 pounds, is still light enough for long-distance backpackers without sacrificing space or durability. Both tents are exceptionally lightweight, making this category a tie.

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Conclusion & Final Verdict:

Both the Big Agnes Copper Spur UL2 and the Six Moon Designs Lunar Solo are excellent backpacking tents, each with its own strengths. The Copper Spur UL2 is ideal for those who need a bit more space, easier setup, and better weather resistance. It's a great choice for backpackers who prioritize comfort and convenience. On the other hand, the Lunar Solo is perfect for solo adventurers looking for an ultralight option with excellent ventilation and compact packed dimensions. If you're a solo backpacker focused on minimizing weight and maximizing ventilation, the Lunar Solo is the way to go. However, if you need more space and easier setup, the Copper Spur UL2 is the better option.

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