Vintage 70s/80s The Knack Blue Poly Blend Contemporary Style Blazer~READ

Vintage 70s/80s ‘The Knack’ blue poly blend blazer. Two ornate button closure; left chest pocket; two lower flap pockets; two inner pockets & inside lined with satin fabric with circle pattern. There is no size tag that I can find, please refer to below measurements. Very good preloved condition. Approximate measurements lying flat: Pit to pit 21” Shoulder to end of sleeve 25 1/4” Shoulder to hem 30 3/4” Thanks for visiting!