The size guide:
UK------EUR---Foot Length
UK 6= EU size 38 = Foot length 235mm-240mm = Foot length 9.25in-9.45in
UK 6.5 = EU size 39 = Foot length 240mm-245mm = Foot length 9.45in-9.65in
UK 7 = EU size 40= Foot length 245mm-250mm = Foot length 9.65in-9.84in
UK 7.5= EU size 41= Foot length 250mm-255mm = Foot length 9.84in-10.03in
UK 8= EU size 42 = Foot length 255mm-260mm = Foot length 10.03in-10.24in
UK 8.5= EU size 43 = Foot length 260mm-265mm = Foot length 10.24in-10.43in
UK 9 = EU size 44 = Foot length 265mm-270mm = Foot length 10.43in-10.63in
UK 9.5 = EU size 45 = Foot length 270mm-275mm = Foot length 10.63in-10.83in
UK 10 = EU size 46= Foot length 275mm-280mm = Foot length 10.83in-11.03in
UK 10.5= EU size 47 = Foot length 280mm-285mm = Foot length 11.03in-11.23in
UK 11 = EU size 48= Foot length 285mm-290mm = Foot length 11.23in-11.43in
UK 11.5= EU size 49= Foot length 290mm-295mm = Foot length 11.43in-11.63in
Warm Tip:Choose a size bigger specially for wide feet