How to use filter? Follow these steps:
Step 1 - Choose one or more brands which you would like to display. You can choose brands in brands menu. Click on brands or hold SHIFT and CTRL to choose more or all brands.  When you choose your brands click Update. According to your choice you will see all cuts, sizes and colours which are available. If you want to choose only among products of brand you are currently browsing you can skip this step.
Step 2. - Choose cuts, sizes and colours and click Update. All available products in your desired size, cuts and colours will be displayed. You can use Reset to return to department where you were.