I have all the ingredients for a second sidemount rig except the wing/bladder. I'm not looking for a brand name version ($$) however I'll entertain it if it's small enough (razor-ish - 20 to 30lbs). Any suggestions on where to find?? It doesn't need to be able to resist a torch either so as long as it's fairly strong, that'll be good.

Anything that you can offer is appreciated.

Thanks,

Glenn