The Fête du Costume is one of Arles’ most refined public statements of identity. It places the Arlésienne dress at the centre of the city, not as decoration, but as a complete language of fabric, jewellery, hairstyle, gesture and memory. The procession and ceremonies show how costume can carry belonging with extraordinary precision. Every ribbon, bodice, lace piece and silhouette belongs to a tradition learned, adjusted and transmitted over time. In Arles, the day does not feel like a nostalgic parade arranged for outsiders. It is a community act, elegant and disciplined, that continues to shape how the city recognises itself.