Dark blue fabric pocket with triangular fold detail.

Photograph presents close-up view of dark blue woven textile material with fine knit structure. Primary focus positioned on jacket pocket region featuring triangular pocket square fold protruding at geometric angle. Lighting reveals textile weave pattern through directional illumination emphasizing surface texture. Color palette demonstrates tonal variation from mid-blue outer garment surface to deep charcoal shadow areas within pocket depth, creating dimensional contrast through light absorption properties of fabric material.