Men's Base & Mid Layers for Running

Men's base and mid layers for running

Comfortable cold-weather running starts with a smart layering system. Our men's base and mid layers — in merino wool or technical synthetic fabrics — manage moisture, hold in warmth and let you keep training all winter, without overheating or chills.

Understanding the layering system

The base layer: managing moisture

Worn directly against the skin, the base layer wicks sweat away to keep you dry. It's the most important piece in cold weather: dry skin is warm skin. Go for a fitted, close-to-body cut.

The mid layer: holding in warmth

Over the base layer, the mid layer (long-sleeve top, half-zip, technical sweatshirt) traps heat while letting the whole system breathe. In deep cold, add a windproof running jacket as your outer layer.

Merino or synthetic: which to choose?

Merino wool

Smartwool merino base layers naturally regulate temperature, stay warm even when damp and resist odour — ideal for long winter runs.

Technical synthetic fabrics

2XU thermal compression tops support your muscles while wicking sweat, Mizuno's Breath Thermo generates heat on contact with moisture, and Under Armour pieces excel in the cold. Fast-drying, perfect for intense efforts.

Dressing for the temperature

Golden rule: dress as if it were about 10 degrees warmer, since effort heats you up quickly. Between 0 and -10°C: a base layer plus a mid layer is often enough. Below -10°C: add a windproof outer layer and protect your extremities with our winter running gear. Consider men's winter running shoes too for grip on snow and ice.

Complete your men's running outfit

Explore the rest of our men's running apparel:

• Long-sleeve tops
• Pants and tights
• Running socks

Looking for the women's equivalent? Discover our women's base and mid layers.