The Aravis' chassis is based on the Unimog U5000 chassis. The total internal volume for the vehicle is 9.5m3 with 8m3 of that under full armoured protection. The Aravis can be equipped for a variety of roles, including patrol vehicle, ambulance, and command and control vehicle.
The Aravis was designed with protection against mines, improvised explosive devices, 14.5mm anti-armour rounds, and 155mm artillery bursts in mind, meeting full STANAG 4596 Level 4 specifications. Like many other mine-protected vehicles, the Aravis was built with a V-hull intended to deflect as much energy as possible from detonations beneath the vehicle away from the vehicle. Nexter has patented the modular hull armour used on the Aravis under the name "Safepro". The vehicle has survived detonations of 50 kg (110 lb) of TNT at a distance of 5 m (16 ft) in testing.
The Aravis' primary armament is housed in a remote weapon station. Armament can vary based on the customer's specifications, but the vehicle has been displayed with a Selex 12.7mm machine gun mount, and Nexter has developed the ARX 20 remote weapon station, which features a 20mm M621 cannon, for use with the Aravis. The ARX 20 can also be fitted with the Pilar anti-sniper system.
The Aravis is capable of speeds of up to 100 km/h on roads, and is said to have a "high standard of cross-country and urban maneoeuvring capability". Without preparation, the vehicle can ford up 1m of water. The Aravis uses are Michelin 365/80R 20 152 K with run-flat and central tire inflation systems. In terms of strategic and operational mobility, the vehicle is transportable by aircraft equivalent to the C-130 Hercules or larger.