The RADICAL 4 integrates the possibility to connect a removable airbag module / reversible backpack, including a parachute pocket integrated under the seat.

Pre-shaped, the airbag has been reworked compared to the Radical 3, it comes further forward of the harness and uses a new, stronger material. Certification tests have confirmed that the product offers optimum safety.

The airbag module is also reversible into a roll-top backpack, accessorized for the mountain (multiple easily accessible pockets, a baton holder, ice axe holder, camel-bag pocket...).  

Its new ergonomic straps and removable belt allow a high carry with a light backpack or a classic portage when the backpack is heavier.

The backpack is adapted to the pilot's morphology, with a larger backrest on size L than on sizes S and M.

The volume of the portage bag is larger than on the Radical 3, it has been designed to hold a Leaf 2 Light glider, a rescue parachute and a bowl helmet.