It's basically a texture-editing utility for those of us who find Photoshop's layers mystifying. It'll take your favourite body texture and overlay special clothing textures on top of that, creating something like the Second Skin products at DAZ. You can then use these modified body textures in Poser. The utility has hue and saturation options to alter the colour of the clothing, and also generates MAT poses to make application of the textures easier.