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Tarptent Rainbow vs Six Moon Designs Lunar Solo

Ultralight Tents: A Battle of the Best

6 min read
Specs last verified 2026-04-08. Prices and availability may change.

When comparing the Tarptent Rainbow and Six Moon Designs Lunar Solo, the Lunar Solo emerges as the clear winner due to its superior packed weight and length, making it an ideal choice for ultralight backpackers. However, the Tarptent Rainbow offers a slightly more compact packed size which could be advantageous in tight spaces.

The Numbers

Side-by-Side

SpecRainbowLunar SoloDelta
Capacity (Persons)11=
Door Count11=
Floor Area22 sq ft26 sq ft-15%
Packed Diameter4 in4.5 in-11%
Packed Length16 in11 in+45%
Packed Weight33.5 oz26 oz+29%
Peak Height42 in48 in-12%
Trail Weight29.6 oz26 oz+14%
Vestibule Area0 sq ft8.5 sq ft-100%
Vestibule Count11=

Where Tarptent Rainbow Wins

The Tarptent Rainbow boasts a moderately smaller packed diameter, measuring at just 4 inches compared to the Lunar Solo’s 4.5 inches, which can be crucial for those with limited pack space or who prefer more compact gear. This difference is noticeable but not overwhelming, making it a matter of personal preference rather than a decisive advantage.

The Tarptent Rainbow also matches the Lunar Solo in terms of capacity and door count, offering no clear disadvantage in these areas.

Where Six Moon Designs Lunar Solo Wins

The Six Moon Designs Lunar Solo significantly outperforms the Tarptent Rainbow in several key metrics. It has a decisively lighter packed weight at 26 ounces compared to the Rainbow’s 33.5 ounces, which translates to less fatigue over multi-day trips and more room for other essential gear. Additionally, its shorter packed length of 11 inches makes it easier to manage on long hikes.

The Lunar Solo also offers a substantial vestibule area at 8.5 square feet compared to the Rainbow’s lack thereof, providing valuable storage space for wet or dirty items.

When to Buy Which

Tarptent Rainbow: 1 win | Six Moon Designs Lunar Solo: 6 wins | 3 ties

Buy Tarptent Rainbow if...

  • You prioritize packed diameter

Buy Lunar Solo if...

  • You prioritize floor area
  • You prioritize packed length
  • You prioritize packed weight
  • You prioritize peak height
  • You prioritize trail weight
  • You prioritize vestibule area

The Verdict

For backpackers prioritizing weight and compactness over all else, the Six Moon Designs Lunar Solo is the clear choice. However, if you value a slightly more compact packed size without compromising too much on weight, the Tarptent Rainbow remains a strong contender.

Lunar Solo

Lunar Solo

$270

View Specs & Prices

FAQ

Which tent is better for multi-day hikes?

The Six Moon Designs Lunar Solo is better due to its lighter weight and shorter packed length.

Does one tent offer more storage space than the other?

Yes, the Lunar Solo has a significant vestibule area compared to the Tarptent Rainbow’s lack of vestibule space.

Is there much difference in capacity between these two tents?

No, both tents are designed for one person and have similar door counts, so the capacity is essentially identical.

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