Black cargo type trench/blazer

black blazer/jacket has four pockets in the front all functional has a four button-down closure it has a Blazer like collar it has two buttons on top of the shoulders that have a little strap hook to it at the end of each sleeve there's a strap and all these straps look removable or interchangeable something and that's the front of the jacket the back of the jacket looks like a blazer and it has two buttons with the strip that looks like you can unbutton it looks like it's to make you look cinched it looks like you can remove that and then there's the you know type of split that covers the buttocks area at the end of each sleeve which I said had the button thing as well but brand new jacket never worn..NWOT