Early in February Steffy was wearing this long tuxedo jacket over a coral jean, and wearing her bullet necklace. The distinguishing features of the blazer include a long, single breasted slim fit.The length of blazer is past hip length. The fabric is brushed to sheen. The lapel is long and slim. There is a slightly curved hemline. (pardon the second image but I wanted to show length). There are a number of long black blazers on the market, here are a few that resemble this look:
Available at Reiss: Adele long line jacket, $370
Available at Farfeth: Malene Birger Tux blazer, $495