All sizes are in US sizes. 

US size is 1-1.5 sizes bigger than UK size for men and kids. 

US sizes are 2-2.5 sizes bigger than uk sizing for womens

Most Spikes are in Mens Sizing so if you ordering off you current pair it will generally be a men’s size. Contact us if you are unsure.

Please take note of any sizing descriptions on individual shoes styles as some shoes fit either very big or small