We never want to send you something that doesn't fit properly and understand that sizing can sometimes differ between brands.
Where is your size guide displayed?
Just click on the 'size guide' button on each product page to find out the measurements (which you can view in CM and Inches), size conversions and how to measure to make sure it fits perfectly.
The size guide is currently available for around 1000 brands, but if you can't see it on the product page, watch this space as we are looking into expanding the range shortly.