What Is a Base Layer?Having a suitable base layer is essential to staying warm. A base layer is anything you wear against your skin, either underneath or on clothes. The bottom line is that base layers, or thermals should be made of an insulating material, such as wool, fleece, or silk for warmth and moisture-wicking properties.The Benefits of a Base LayerA question that has entered the minds of athletes for years is whether or not to wear base layers or leggings. The answer depends on what type of activity one may be involved in and personal preference. In colder climates, it is typically recommended that a person have at least three layers on during cold weather activities. They
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