A true selvage denim gem dyed with natural indigofera tinctoria. The ring-spun warp and weft yarns are of similar thickness, and the irregularities of the yarns give the denim a well-balanced texture and vintage-like appearance. The yarn-spinning process and weaving create a built-in tension that brings out a marble-like texture over time. And ruby is, of course, a hint to the "brilliant" red cast.

Rinsing makes indigo bleed onto white weft yarns — the white ones on the inside. This creates an evenly distributed, more uniform, and clear blue hue. The process gives the jeans a richer, vintage-like texture and fuzzy surface.