The basics Brush Cocoon is a figure hugging fine mesh tubing that help keep the shape of your brushes. It also helps to protect them from becoming misshapen when in transit or storage; they are like a corset for brushes! The benefits Brush Cocoon is your perfect travel solution too; how many times have you thrown your brushes into your makeup bag, only to find them all squished up? Using one will make that experience a thing of the past! The uses Just slip your dry brushes into the soft mesh before you pack your bags to keep their shape. The bottom line When you invest in beautiful makeup brushes, keeping them at their best is really important and Brush Cocoons help to do just that.