Let’s draft together the pattern of this blazer.
The timeless style has an accent on the collar detail, that features two pleats.
Almost any medium weight fabric can be used to sew it, as it can work in wool/wool blends for winter or in cotton/linen/silk and their blends for summer. Just avoid drapey fabrics, as silk satin, as they wouldn’t hold the pleat construction.
Facing and lining patterns are drafted the basic way, no alteration is needed as the collar construction relates only to center front.