Base and Mid Layers

As the first layer, the base layer sits next to skin and wicks away moisture to keep you dry and protect you from becoming too cold, too quickly. This underlayer is the foundation of your layering system, built for moisture management and temperature regulation. 

As the second layer, your mid layer is the insulation between the base and the outer layer that adds warmth and helps you retain body heat. However, the midlayer isn’t only about warming you up. The goal of this layer is to keep your core temperature in the right spot aka keep you comfortable. In addition to warming you up, midlayers are typically made of breathable materials designed to also cool you down so you don’t overheat during high output activities.