Men's warm jackets: stay warm when it gets really cold

Icy wind on the summit, a stop at the aid station, an early start at minus two: that's when you want a jacket that holds in your warmth without slowing you down. In this collection you'll find men's warm jackets for trail running and the mountains — from breathable softshells and insulated jackets to insulated vests and ultralight down jackets, from brands like Arc'teryx, Dynafit, Montane and NNormal.

Softshell or insulated jacket: warm while you run

Want to stay warm while you keep moving? Choose a jacket that breathes. A hybrid jacket, like the Dynafit Alpine Hybrid Jacket, combines windproof front panels with breathable fabric on the back. A lightly insulated jacket, like the Arc'teryx Atom Hoody or NNormal Active Warm Jacket, traps heat while still wicking sweat away. That way you stay comfortable on the climbs too.

Down jacket: for standing still and extreme cold

Down gives you the most warmth for the least weight and rolls up small in your pack. An ultralight down jacket like the Dynafit Ridge or Montane Anti-Freeze is ideal for breaks, summits, waiting at the start or multi-day trips. While actually running, down is usually too warm — a softshell or insulated jacket is the better choice then.

Insulated vest: warm core, free arms

An insulated vest, like the Arc'teryx Atom Vest, OMM Core Vest or Dynafit Trail Reflective Insulation Vest, keeps your core warm while your arms move freely. Perfect over a long sleeve on cold, dry days, or as an extra layer under your rain jacket.

Frequently asked questions

What's the difference between a warm jacket and a midlayer?

The line is blurry. Many warm jackets also work as a midlayer under a rain jacket. The difference: a warm jacket is more often worn as your outer layer and offers more wind protection.

Can I wear a down jacket while running?

Only at very low intensity or in extreme cold. At a normal pace you'll quickly overheat.

Is a softshell waterproof?

No, it's usually water-repellent. In real rain, pull a men's rain jacket over the top.

Complete your winter outfit

Pair your jacket with a breathable long sleeve, warm tights and gloves, or browse all men's trail running apparel.