What to wear to run in extremely cold weather

A guide to women’s running clothes for a real Canadian winter

We’ve all seen the cold weather running guides that tell you how to dress for “bad weather” around the freezing point. But if, like me, you are a newer runner trying navigate the challenge of running in Ottawa, or worse, in Edmonton this winter, this is the guide for you.

All Temperatures:

  • For winter running (no matter the temperature) I tend to run with my Nathan hydration vest so that I can carry an extra windbreaker or down jacket. If by some misfortune I injure myself and need to walk home, at least I have an extra layer (and a place to stash my phone).

  • Merino hiking socks - usually Darn Tough or Smart Wool. Winter socks must be tall enough to avoid bare ankle skin.

  • Trail Shoes: I wear the waterproof version of my standard Altra Lone Peaks in the winter.

  • Traction: The Kahtoola Exo Spikes for slippery conditions, and the Hill Sound Trail Crampon Ultra for “day after an ice storm” conditions.

0C to -10C

  • Above -10C I usually opt for the fleecy-fuzzy version of standard running tights. I found some nice ones by Spyder at Costco that even have pockets.

  • I find that a heavy weight Merino top maybe with a windbreaker vest is chilly starting out but the right warmth when you get moving. I love Icebreaker 260 base layers. I add a windbreaker or rain jacket over top if windchill is a concern or its actively snowing.

  • At these temperatures I don’t worry too much about which sports bra and underwear I grab out of the drawer, though merino is nice for longer runs.

  • Light gloves - I have a thin pair from Arc’teryx that are great.

  • A merino Buff as a neck warmer

  • Another merino Buff as a headband

-10C to -20C

  • Heavy weight merino base layers top and bottom (I just love the Icebreaker 260 matching sets)

  • Light windproof pants like the cross country skiers wear. Some of these have a layer of grid fleece which is nice on high wind-chill days.

  • Windproof top or jacket: Craft makes a great running sweater for the warmer end of this spectrum that is windproof on the front and well ventilated on the back. Closer to -20 I switch to the Lululemon Down for It All Running jacket.

  • Almost always merino underwear and bra in this temperature range

  • Medium weight cross country ski gloves

  • A merino Buff as a neck warmer

  • A tight fitting running hat (with a ponytail hole!) with the merino Buff headband layered on for extra ear protection.

-20C to -25C

  • My thighs are always the first thing to get cold at this temperature, but thankfully down pants exist. Below -20C I layer the Mountain Hardwear Stretchdown Pants over my merino base layer.

  • Heavy weight Merino shirt with Lululemon jacket or my Eddie Bauer 800 fill puffy jacket.

  • A merino Buff as a neck warmer but pulled up over my mouth and ears for extra protection, and either a polar fleece neck warmer as a second layer, or a second Buff stashed in my vest for when the first one freezes.

  • A proper hat over top of the buff - ideally one that is lined with polar fleece.

  • Warm gloves or mitts.


Below -25C

Below -25C I switch to treadmill running - its just more fun to switch to Peloton runs at that point. However, tomorrow’s forecasted high is -29C in Edmonton, so if you are wondering how I plan to exist in the world (to walk the dog for example) the answer is:

  • Mountain Hardwear Down Pants over merino baselayers

  • Fjallraven Expedition Jacket

  • Classic Bog Boots - not pretty, but rated down to -50C

  • All the layered hats and neck warmers.

  • Muttlucks dog boots for the furry friend.

  • And, short excursions only.

A spring day in the Kootenay Plains

A spring day in the Kootenay Plains

I did it!