Thermal Tech Tee Long Sleeve, Berghaus, £50, berghaus.com

This stylish base layer is perfect for use on the trail during winter wanders, providing just the right level of thermal protection. It has a half-zip to allow you to cool down when working up a sweat (a non-zip version costs £5 less). It’s nice-looking, and being thick it can be worn as a stand-alone top. Made with a synthetic yarn called ‘Argentium’, which traps and warms air to keep you cosy, the tee doesn’t absorb much moisture and will retain its thermal properties even when wet, so if you do get caught out in a surprise shower, it’s not a disaster. It’s breathable, comfortable and wicks moisture away from the body during active use. VERDICT 9/10