Bon's shirt was made using a bright, clear yellow gingham fabric. This bright yellow was something bonpon was particular about. They did several test weavings to get closer to the yellow they had in mind. The trademark eyeglasses embroidery is a royal blue that stands out against the yellow. "We made a bright yellow gingham shirt, like rape blossoms. Wearing bright colors lifts your spirits! Enjoy going out in clothes that stand out against the blue sky." from bonpon