What is the Shoe Width? Mens Shoes in the UK assume that a "standard British foot" is an F fitting. However to accomodate variations in foot size alternative width fittings are available. Narrow Fitting shoes - UK Fitting E (in the old days known as Fitting 5) Slightly narrowerer than Average Fitting - UK Fitting EX or E+ This fitting is halfway between the Average F Fitting and the Narrow E Fitting Standard - UK Fitting F (in the old days known as Fitting 6) Slightly Wider than Average Fitting - UK Fitting FX or F+ This fitting is halfway between the Average F Fitting and the Wide G Fitting Wide Fitting Shoes - UK Fitting G (in the old days known as Fitting 7) Extra Wide Fitting Shoes - UK Fitting H (in the old days known as Fitting 8) As a shoe increases in size the length and width increase. A size 8F shoe is therefore one size bigger and one size wider than a size 7F shoe. A size 7G shoe is a size wider than a size 7F - in other words the width of the shoe would roughly correspond to a size 8F.