i think i read about the liquid armour on here before but i can't remember seeing a video on it, and as it happens ive found one
,
http://www.dumpalink.com/media/1150446097/Liquid_Armor
looks interesting and a vast improvement on protection, i think theres only one qualm about it is from the looks of it i think it could cause a fair bit of tissue damage, but its better than having bullets bouncing around your chest