Weather is one thing that we can't control. That's why the PreSonus StudioLive Speaker Cover is a neccesity for your StudioLive AI Speakers. When loading and unloading your audio equipment each week, they need to be protected from dust, moisture, and the elements. These speaker covers are padded, and feature a dustproof and water resistant cover specially designed to fit the Presonus StudioLive AI Series speakers.