leather jacket and coat give you sprint perk, the less action points you have the faster you run, up to almost double speed? i think. so you get shot, you first aid, then you can run faster, then you hit your target and he tries to run away, but you can run faster because you just used Action points.
So ironically, the less agility you have the faster you can run, because that will make your ap regen slower when running, enabling you to run faster longer when wearing leather jacket.