When I boosted the stats for my reindeer coat I didn't get the option what color I wanted it to be. First I thought it was because the reindeer coat is an "off category" item. But the same happened to Sleuth Sindy today.
Great news everyone, I've reverted the original Reindeer Coat to its original stats, and BadAss now has the coat more fitting to his achievement in tracking down a nemesis.