MAX MARA Beautiful Viscose and Nylon Blazer Suit Jacket

This jacket is absolutely beautiful. I wore this only a handful of times before the pandemic and have since had a baby. I’m finally ready to let go of this and get something that fits :) For reference I am 5’ 7”, 160lbs. This is about a size too small on me. Please review the measurements closely. Although this has some elastase in it, it doesn’t feel like there’s much give to the fabric.