The essential building block in any layering system. Base layers provide breathability, extra warmth, moisture control, next-to-skin comfort and temperature regulation whatever your preferred outdoor activity. Our selection of base layers are made from either Merino wool or high performance synthetic breathable fabrics. The synthetic Erling comes in hooded and hoodless versions. The Hamr is made from a superfine Merino wool whilst the Heimdall is a winter weight, jersey style Merino wool base layer.