It's actually separates! Which is good for us as we've mislayed the brown leggings we'd normally pair with this top.
As all previous tennis skirts have been made from cotton / lycra
jerseys, I wanted to show how using an interlock gives the skirt a
slightly different shape. Without the added lycra that lends the jersey extra weight, the interlock drapes into gentle folds rather than holding the a-line shape.