Industrial & Construction Boots by Shaire. Details:88"-10.03" (245mm- 250mm) EU40=US 9= Foot length 10.07" - 10.23" (251mm- 255mm) EU41=US 9.5 = Foot length 10.27" -10.43" (256mm -260mm) EU42=US 10= Foot length 10.47" - 10.63" (261mm-265mm) EU43=US 10.5 = Foot length 10.67"- 10.83 ...Industrial & Construction Boots by Shaire. Details:88"-10.03" (245mm- 250mm) EU40=US 9= Foot length 10.07" - 10.23" (251mm- 255mm) EU41=US 9.5 = Foot length 10.27" -10.43" (256mm -260mm) EU42=US 10= Foot length 10.47" - 10.63" (261mm-265mm) EU43=US 10.5 = Foot length 10.67"- 10.83" (266mm-270mm) EU44=US 11 = Foot length 10.87"- 11.03" (271mm-275mm) EU45=US 11.5= Foot length 11.07"-11.23" (276mm-280mm) EU46=US 12 = Foot length 11.27"-11.43" (281mm.