Merino wool fibres are able to absorb large quantities of moisture vapour then allow it to evaporate into the air. This means that Merino wool clothing is extremely breathable and less prone to clamminess.
Warm and cool
Unlike synthetics, Merino wool is an active fibre that reacts to changes in body temperature. So in cooler weather it helps you stay warm, and when it is hot it helps you to stay cool.
Because Merino wool can absorb moisture vapour, it tends not to create static electricity, helping it to sit nicely on your body without it clinging.