C/F to Rubbing (Veslic); C/F to Rubbing (circular) Dry: 256 revolutions; C/F to Rubbing (circular) wet: 128 revolutions; vamp Flex test (Room temperature. Dry: 100.000 cycles); vamp Flex test (Room temperature. wet: 100.000 cycles); Heel fatigue for shoe heels (20.000 cycles); Thickness of leather; Color fastness to water (method 1); and Color fastness to perspiration (method 2, alkaline solution) Method: ISO 5402-1, ISO 2589, ISO 11640