With regard to the cut, a good coat needs to be long enough to cover the waist/kidney area while seated. A freezing waist area while flying with the doors off mustering etc is a huge problem. It also needs to be thin enough to prevent discomfort while strapped in & trying to lean out the door to see the sling load. I've also had problems with "bomber jackets" having a rough collar, & after a while looking out the door at said sling loads I get a chafed neck. If you come up with a winner I'd suggest advertising in the mustering/Ag/outback market as all of our flying is with the doors off, & a good coat is worth it's weight in gold. Good luck.