Women’s base layer bottoms are like underwear for skiing, she can’t go without them. On warm days the fabrics that make base layers for skiing and snowboarding wick moisture (sweat) away from the body, keeping her comfortable and dry, while they keep the legs warm and ready to go on cold days. Of course, ladies long underwear comes in a variety of thicknesses suitable different weather conditions. Ordinarily, with insulated ski pants, a thin ladies bottom base layer will be perfect in most conditions. With shell ski pants it is best to own a couple different thicknesses of long underwear.