SYNTHESIS PANTS Qlassic Charcoal Grey Trackpants leon Ksubi Origin Trak Pant Snow Marl Garmentory Ksubi Origin Trak Pant Snow Marl Garmentory. The State Synthesis Trak Pant Charcoal Fade is a relaxed fit track pant with straight legs, an elasticated waistband with drawcord, rear welt pockets, and side seam pockets. Made from brushed back cotton fleece in overdyed charcoal with a vintage wash, it features a garment spray for highs and lows, a boucl Ksubi branded patch, and is finished with embroidered Ksubi T box branding.