The Logic Behind Layering Mountain climbing demands a lot from your body. One of the biggest challenges in cold environments is regulating your body temperature, which is critical for optimum performance. The best way to stabilize your temperature is through layering. Layering allows you to:\r\n a. Manage body temperature efficiently\r\n b. Minimize sweat\r\n c. Insulate from the cold\r\n d. Protect from wind, rain, snow\r\nBaselayer also known as next to skin, long underwear, first layer, and performance layer. The baselayer is the first layer of your system regardless of weather. It is a quick drying, fast-wicking, non-cotton layer that moves moisture, sweat, and vapor away from your skin and quickly transfers it out. Breathability and moisture management are its primary function.