Inflatable life jackets are reusable after each inflation; however, you must replace the CO2 cylinder before reusing them. To ensure yours is always ready, use an Onyx rearming kit. It’s advisable to buy an additional rearming kit to familiarize yourself with the inflatable life jacket's operation. Before heading out on the water, confirm that your inflatable life jacket is properly armed and ready for use. Always consult your Owner's Manual for instructions on how to arm your life jacket initially with the CO2 cartridge and how to rearm it after inflation.