I once saw something that was gonna be used for soldiers in the near futher .
it was somekind of powersuit that makes you double so strong ( weights 60 kilos altough )
it also had somekind of liquid in the suit that you could make hard on some places . by ruining a liquid trouh it .
this would be handy if somebody got hurt at his leg ( by breaking in or something ) . just run the liquid trough the suit near the leg and you reinforced the complete leg and can move on