Built for activity, the Rab Nucleus half-zip midlayer is a favourite amongst climbers and hikers. The insulating fleece with oval-grid back punches above its weight in terms of warmth, weighing just 345 grams.

The soft Thermic™ stretch fabric gives a full range of movement and, thanks to its regular fir, doesn’t hug the skin too closely. Flatlock low-bulk seams improve flexibility further by ensuring that the material doesn’t rub as it moves across your skin.

Layer under a waterproof or softshell jacket for extra warmth and protection against the elements or wear on its own on fair-weather adventures.

• YKK® half-length zip
• YKK® zipped chest pocket
• Thermic™ stretch fleece with oval-grid back - warm, moisture-wicking and comfortable
• Flatlock low-bulk seams - smooth against the skin
• Double cuffs
• Regular fit
• Weight: 345g