When sourcing office wear, prioritize fabrics that balance professional appearance with durability. Look for wrinkle-resistant treatments (Non-Iron or Easy-Care) to ensure the garment stays crisp throughout the workday. For shirts, a thread count of 80s to 120s provides a premium feel, while for trousers and blazers, a blend of wool and polyester (e.g., 70/30 or 50/50) offers the best combination of breathability and shape retention. Ensure the fabric weight is appropriate for the season, typically 240-280 GSM for year-round suiting.