hi, I'm 5ft 2 so petite, I'm on the look out for a black blazer to wear with jeans manly to smarten them up, I have one I brought from John lewis, but I think the length is wrong, it cuts across the middle of my bum, and just looks wrong, could it be to long , if you are petite do you wear a jacket that covers the bum, or what about a cropped one, I just got one from h&m it fits perfectly but it's polyester, the fabric i am trying to avoid. I only own biker jackets, so this is my first blazer for many years.