Thermal clothing offers several benefits though it is, of course, a personal preference if you opt to wear one. Some of the advantages to wearing thermal underwear, pants or tops include regulating your core temperature while still allowing for air flow and being moisture-wicking to remove perspiration. Thermals also tend to be lightweight so that you can easily layer over the top without restricting flexibility and should repel or resist odour.

Merino wool is a natural fibre and one of the finest wools produces across the globe. Using sustainable farming practices, Merino sheep produce new fleece every year which makes merino wool a renewable fibre. Thinner and softer than your standard wool, merino is lightweight and breathable yet warm – and warmer still as the density of the wool increases. Merino wool is also antimicrobial which, killing odour causing bacteria, and hydroscopic, absorbing and releasing moisture from your skin. It can also absorb up to 35% of its bodyweight in moisture before it begins to feel damp yet keep you warm when it's wet.

The thermal range available at BCF offers a range of leading outdoor adventure gear brands including Under Armour, Macpac and Outrak who feature everything from tops to bottoms and underwear available in merino wool and synthetic blends. Choosing the best thermal clothing heavily relies on personal preference, however, you should always check for ventilation such as a zip or mesh panel on the sleeves or back to help improve air flow.