: My take on air bags is that if you splinter a wood/glass hull, you risk
: popping the air bag too.

Actually, I'm in a folding Yostian SOF. I probably made this confusing by trying to be funny about my high speed paddling (not), and the attendant collision risk (again, not), which would demand an auto style air bag to protect me.

What I really want is to make a dry bag/float bag which would allow me to store gear AND lightly inflate, using a tube/valve.

Hoping for some simple pointers and/or someone to point me to web instructions.

Sorry for confusing the matter.

Warmly,
Wayne