It really depends on the width of your feet and how you like your shoes to fit. See below for some examples:
- If you have an average width and like a secure/tight fit, go down (eg. UK8.5, go for a UK8)
- If you have an average width and like a loose/relaxed fit, go up (eg. UK8.5, go for a UK9)
- If you have wide feet, go up (eg. UK8.5, go for a UK9)
If you are really unsure then contact us.