US7=UK6=EUR40, US7.5=UK6.5=EUR40.5, US8=UK7=EUR41, US8.5=UK7.5=EUR42, US9=UK8=EUR42.5, US9.5=UK8.5=EUR43, US10=UK9=EUR44, US10.5=UK9.5=EUR44.5, US11=UK10=EUR45, US12=UK11=EUR46, US13=UK12=EUR47.5, US13.5=UK12.5=EUR48