Medium Insulation also known as insulated layer, softshell layer, sweater, puffy. Warmth, wind, and water resistance are the primary functions of the medium insulation. This layer can be added over the base and light insulation layers for instant weather protection.\r\n\r\nMedium Insulation is a heavier insulating layer that includes a broad range of materials and styles including soft shell jackets, fleeces, wool, and down or synthetic sweaters.\r\n