Airlight Cartridge by Freejump for Penelope Airlight Vest - Cartridge for Airlight by Freejump airbag vest. The airbag vest is sold with one cartridge included, but we strongly recommend having an extra one in case of a fall. You must choose the cartridge size according to your vest size. 

• 50cc for sizes XXS, XS and XST 
• 60cc for sizes S, ST, M and L