FSI FOOTWEAR SPECIALTIES INTERNATIONAL NAUTILUS FSI Footwear Specialties International Women's Spark Oxford Fashion Boot Black Carbon. BOTTOMS CONDITION: Dust Minor Scuffs and/or Sticker Residue – NO TREAD WEAR INSOLES CONDITION: Dust Minor Scuffs and/or Sticker Residue UPPERS CONDITION: Dust Minor Scuffs and/or Creases.