
Off-Grid
A/C and Heatpump
5kWh
LFP Battery
460W
Solar Panels
MODEL P21X | 2026
Distance is discipline.
Going farther is not about carrying more. It is about knowing exactly what to leave behind.
Here is the P21X. Built to keep you there, after the pavement ends, where the noise fades, the crowd disappears, and the gaze of others no longer matters.
LENGTH
21ft
SLEEPS
4
BATTERY
5 kWh LFP
SOLAR
1,300 W
Aptera glass
DRY WEIGHT
2,100 lbs
01 | PHILOSOPHY
For the deliberate few.
A larger cabin, huge water tanks, and bigger batteries.
That has long been the idea of going off-grid.
The P21X starts from a different question: Not how much we can carry, but how much less we can waste.
For those who want to stay where there is no one else.
Where the pavement ends, the hookups disappear, and the gaze of others no longer matters.

"Most off-road campers solve distance by sacrificing efficiency. We refused that trade."
-KYUNGHYUN LEW | FOUNDER, POLYDROPS
P21X
Starting at $76,900



Energy from nature
Every P21X uses a custom 1300W glass solar panel system developed with Aptera Motors. Because power should come with you, not depend on where you park.
A higher stance, deliberately chosen
A 4-inch lift kit, independent suspension, and all-terrain tires were chosen to handle rougher roads without upsetting the overall balance of the trailer.


Airflow, reconsidered
Changing the height of a trailer also changes the way air moves around it. The P21X was reworked through CFD analysis to preserve efficiency, even with its higher stance.

Specs
All-Electric
Battery
5kWh
Climate Control
10000 BTU A/C and Heatpump
Solar Panel
1300W Aptera Glass Solar Panel
Power Outlets
Two near Bed
One near Kid's Bed
Shore Power Inlet
30A
System Control
7" Touchscreen
Bluetooth Remote Control
Dimensions
Overall Length
21 ft
Overall Width
5 ft 8 in
Sleeping Capacity
4
Dry Weight
2,000 lbs
Overall Height
7 ft 6 in
Bed
58" x 80"
Interior Height
72" at the highest point
Frontal Storage Deck
58"W x 59-1/2"L
Under Bed Storage
8.2 cu ft
Outdoor Rear Storage
17.8 cu ft
Included
-Cooking Station
Induction Stove (1800W)
Microwave (700W)
Overhead Cabinet (1.15 cu ft)
-Sanitation Unit
Sink (15-3/4" x 13-3/8" x 5-7/8")
Faucet (Dometic GO)
Fresh Water Tank (9 Gal)
Water Heater Tank (1.3 Gal, 1440W)
Shower Pan (36" x 24")
Geyser EcoShower
Portable Toilet (2.6 Gal)
-Fridge
Dometic CFX 3 25L (46W)
-Floor Mat
Premium Vehicle Floor Mat



Battery Upgrade
$4,599
Expand your battery from 5kWh to 10kWh, giving you twice the power and the freedom to stay off-grid even longer.
Add On

For those who want comfort where most people turn back.











