US 6.5= EUR 39= 24.5 cm= 9.64” inch US 7.0= EUR 40= 25.0 cm= 9.84” inch US 8.0= EUR 41= 25.5 cm= 10.04” inch US 8.5= EUR 42= 26.0 cm= 10.23” inch US 9.5= EUR 43= 26.5 cm= 10.43” inch US 10 = EUR 44= 27.0 cm= 10.63” inch Imported Rubber sole Breathable and durable flyknit upper allows the feet to breathe. Extra lightweight gives more flexibility.