A single-button jacket in dark navy synth-polyester blend, originally manufactured as part of a Tier 2 office uniform line and now circulating through resale markets in significant volume. The construction is utilitarian — fused interfacing rather than stitched, a single internal pocket, and shoulder seams that sit slightly wide on most frames. The lining is a slick beige acetate that catches static. Despite its origins, the jacket reads as intentionally formal from a distance, which is the point.

At Φ22, this is the most common 'occasion jacket' on the Shelf and lower Tier 2. It appears at everything from corponation subsidiary job fairs to Ouroboros insurance dispute mediations to community hall weddings. Augment-incompatible by design, though many owners have cut their own port-access slits into the back panel and hemmed the edges with iron-on tape.