CHARATERISTICSPOLYURETHANE COAGURATED MICROFIBER NONWOVEN SYNTHETIC SUEDE. WITH STABLE ELONGATION OWING TO THE INSERTED WOVEN SCRIM.USED AS THE SUBSTITUTION OF NATURAL SUEDE FOR CLARKS SHOETHICKNESS1.0 mmWIDTH54" +/-1" PHYSICAL PROPERTYTEST STANDARD ALFS1000 SUB ALFS1400 SUB GAUGE (mm) ASTM D-1777 1.0 1.4 WEIGHT (gr/) ASTM D-3776 350.0 500.0 TENSILE, Length (kg/2.54cm) ASTM D-5035 35 45 TENSILE, Width (kg/2.54cm) ASTM D-5035 30 45 ELOGATION, Length (%) ASTM D-5035 105 120 ELOGATION, Width (%) ASTM D-5035 100 120 TONGUE TEAR, Lenghth (kg) ASTM D-2262 5.5 7.0 TONGUE TEAR, Width (kg) ASTM D-2262 5.5 7.0 MULLEN BURST (kg/) ASTM D-3786 18 20