When you participate in highly active outdoor activities during the winter, wearing light weight clothing in layers is the best way to stay warm and dry. This gives you the ability to add or remove layers and adjust to changing conditions or body temperature. For most people, snowshoeing is a highly aerobic activity and perspiration will become a bigger factor than you expect. Therefore, moisture management is very important in trying to remain warm and comfortable. A three-layer system is best, consisting of wool or synthetic base layer, a lightweight fleece middle layer and a windproof, but breathable outer shell. You should also choose jackets and pants with articulated shapes or stretch panels which allow more freedom of movement.