Had a low/no speed get-off trying to get to a campsite parking- steep, rocky, rutted and rooted! Goosed it over a hump and bike went down and I flew off. The turtle 2 immediately inflated and I literally bounced over a terrain that undoubtedly would have been cruel to my 73 yr old bones. I literally jumped up totally fine and dealt with the bike (Ignition off and with two nearby campers and my son got the bike upright. It wasn't a tragedy and probably wouldn't have been even with just my normal gear on- but that vest , on that landscape, I'm sure made a possible "situation" a nothing burger! I carry a spare CO2 so I was in business in a few minutes. When I got home I looked for the Helitte 60cc CO2- NONE- not Helite site, not Revzilla, not Amazon and no where else. I emailed a link on the Helite site hoping that in a week they'd get back- if at all (still waiting for a few such vendors!) well- an hour and a half later I get a reply, how many do I want? Hour and a half later I get an invoice that I pay online and immediately get a tracking #. Thanks Helite!