A good tip for staying dry is also to wear your boots or overshoes loosely tied until arriving at your site. If you get hot along the way, be sure to unzip your jacket to let out some of the heat or even take off a layer. You could also carry a few extra pairs of dry felt boot liners, moisture wicking socks, and mitten liners. Moisture or sweat can make you very cold when the wind begins to blow. The next layer is the warmth layer and wool is a great fabric for this.
Fleece is also a popular warmth layer as well as down jackets.
Wool is great for hats and mittens as long as they have a protective windbreaker fabric on the inside or outside. A face mask or neck warmer may be the ticket in windy weather. Also, be sure your hat has generous ear flaps to cover your entire ears if the wind gets a howlin'. A one-piece insulated coverall is ideal for this sport, especially if it has a hood that can be left open or pulled tight around the face and neck. The final layer is the windbreaker.