Short Sleeve Base Layers
Short sleeve base layers are one of the most flexible items of technical outdoor clothing you can have in your kit bag. In warmer months they can be worn on their own to help regulate perspiration and aide cooling by efficiently evaporating moisture. When the temperature starts to drop they can be combined with thermal mid layers as part of a layering system, allowing you to regulate your temperature by adding and removing garments. For high aerobic activity such as rowing and running, many participants warm up with a short sleeve base layer over a long sleeve base layer to prevent bulking up of the lower arms, and remove the upper layer once warm.