This white blazer (specifically, the "Optical White" shade) stands out for its:
Silhouette: Fitted, tapered silhouette that falls below the hip.
Details: Peak lapels, welt pockets with flaps, set-in sleeves with buttons at the cuffs, and a center back vent.
Closure: Double-breasted with six buttons.
Interior: Semi-lined in Monogram jacquard fabric.