Best Clamshell for Two · 1 of 4
Naturnest Sirius 1 Hardshell Rooftop Tent

- 82.6x63 in floor, 47.2 in headroom
- 5000mm, 420D ripstop
- Double locking system
Our take
A low-profile, lockable clamshell that sleeps two adults and a child.
Why it made the shortlist
The Naturnest Sirius 1 is a slimline clamshell with an impact-resistant ABS shell, an aluminum frame and a hydraulic boom that opens it in 30 seconds. It sleeps two adults and a child on an 82.6 by 63 inch floor with 47.2 inches of headroom.
Compared with the Sirius 1 Plus it has a thinner mattress.
What works
- Aerodynamic slimline clamshell
- Double locks on the shell
- Built-in 7.5 ft ladder
- UV 50+ fabric
Watch out for
- Thin 1.2 inch mattress
- Clamshell gives less headroom than a lift roof
- The catch
- A thin mattress means a pad is worth adding.





