Micro Ondes is a proprietary Sellam finish for the 69 sub-line - a low dimensional wave worked into GOTS-certified organic cotton so the fabric holds a surface rather than sitting flat. On black, the cold-dye process reads as depth: pigment pools in the lower channels of the ripple and at every seam fold, making the body of the tee shift between denser charcoal and lifted graphite as light moves across it. A leather spine insert runs the back. The Steel Staple 69 gunmetal agrafe anchors the collar - cool on contact, softening with body heat. Constructed entirely in Paris, in the atelier Sellam has used since 2002.