You can be in the water in one of those in the fog, and the helicopter won't find you. They can't see you visually because of the fog, and the FLIR won't pick you up because the suit is trapping your heat. Better have a couple of flares. Oh yeah, Mustang doesn't provide a pocket for flares because it isn't 'required'. Pop a flare and the heli will be on you like fleas on a dog - then you get a neat tee shirt to wear at the end of your ride. My son has one.