Chadwicks Plaid Blazer size 18

Loved this blazer but I now need another size smaller. It is a really nice plaid blazer that looks great with jeans and also a long maxi or midi skirt with boots...A very chic look! The length is perfect, not too short and not too long....Normal wear for a pre-owned jacket. The colors are greens, black, white and a hint of purple/mauve.. Shoulder to Shoulder: 16.5" Pit to Pit: 45" around Length: 23" Sleeve Length: 24"