Any way to convince my dad...

[billie_morini]

Kwik and Oswaldo,
I have crews that work on water constructing stuff or collecting water samples & sediment cores. The smallest vest I know about is this one (use manual mode, if you are crazy enough to surf with vest).

http://www.westmarine.com/buy/west-mari ... --14001911

[Surfjunk]

are there any flotation vest who arent those big thick big wave vest , but smaller like a little thicker rash vest which give you a little flotation?

Is something like that available ?

Thanks cheers

Yes an inflatable rash guard for surfers exists now (not when you posted this:)
https://www.quaticapparel.com/inflatable-rashguard-1

[billie_morini]

thanks, Surfjunk. That's new! Here's a demonstration video that I like very much for many reasons. I'm sure others will enjoy it, too.