Survival Vest Design

Congratulations: You input is cordially invited to a design by committee survival vest. Not the contents the vest it self.

What features and accessories would you want in a vest?

What material or materials would you use?

Added Functions: Other than just a gear carrier what jobs would you want it to perform?

This is not a, what commercial vest do you or would you use. It is to design something new maybe better design.
_________________________
When in danger or in doubt
run in circles scream and shout
RAH

And always remember TANSTAAFL