Blauer's mid-layers are most often insulation layers. Check out Blauer's B.Warm and Polartec fleece, which provides excellent insulation and have the wind protection to be worn as outer layers. Blauer sweaters, with and without fleece and Wind Stopper liners, are great looking, machine washable, and the most durable sweaters made. Layering is here to stay because it offers users the flexibility of adding or deleting layers as the conditions change. Blauer offers various fleeces, soft shells, sweaters, and wind liners that can alternate between insulating and outer layers.