Unless otherwise specified, our sizing is in European measurements. UK measurements are provided within our size guide as well as 'general sizing' for all of our items and are closely related to AU sizes in order to facilitate easier purchasing online. Generally speaking, we will advertise EU sizes on the product pages of our website, and EU sizing can be up to 2 sizes smaller than AU. This is a broad rule, and won't apply to each individual item.
Decathlon provides a flexible returns policy, so please don't hesitate to contact our helpful Customer Service team via chat or at contact.australia@decathlon.com if you have any questions or need further assistance.