Calvin Klein brings its traditional posh sensibilities to the Tracie Calf boot. This luxe look in leather wins with sleek lines and bold polished hardware for a hint of shine. A flat manmade sole offers good grip wherever you feel like looking high-brow in Calvin Klein. materials: Leather upper. Synthetic lining. Manmade sole. measurements: Shaft height measures approximately 15.75" from arch. Boot opening measures approximately 14.5" around. Heel measures approximately 0.5" item details: Zip closure. buckle. country of origin: China.