As far as the Spartan: the material seemed heavy enough to me to avoid the "fly up." It was the same material that basketball jersey's are made of..the lightweight material with small holes in it. No idea what the name of the material is unfortunately. I didn't notice whether or not it had pockets.

Re: Survival. Yeah, the old survivals were $175. Such an amazing deal, and when they had my size I was sold in no time flat.