myEDITED: How Do I Use The Fabrics Filter?
What Is a Fabric Filter?
You can now add Fabric as a filter, as highlighted in the filter panel.

When you select this filter it will default to the individual fabrics tab.

Click from the fabrics dropdown to view a list of predefined fabrics.

Select +Add fabric to add your selected fabric type to your filter. This will now appear in the right hand column. Repeat this step to add multiple fabrics fields.

Click the X beside the fabric type in the right-hand column to delete from your filter.