If you've developed a "new year, new you" mentality, it's entirely possible you might wander outside into the cold rather than curl up by the fire with a warm blanket and a warming whiskey.
We're not here to tell you how to live your life.
Just to outfit your body for the purposes of comfort and frostbite avoidance.
Because if there's any chance you're going to run outside or otherwise break a sweat during the coldest months, then you're going to need an arsenal of handsome, functional activewear that's capable of making cold-weather exercise not entirely terrible.
Here's everything you need, from base layers and jackets to socks and gloves.
The Base Layers
Extra-cold workouts, from running to skiing, require a solid base. Swaddle your body in Smartwool. Their base layers include 100% Merino wool options that are comfortable, breathable and odor resistant. Smartwool, $70 and up
Cover your legs with Ten Thousand's Interval Pant. They're made from sweat-wicking, quick-drying performance material and feature four-way stretch and a no-pinch waistband, so you can run and lift in comfort. Ten Thousand, $118
Tracksmith's waffle-pattern Merino wool shirt traps air against the skin to increase insulation, while also allowing heat to escape as your effort increases. It's everything you want in a long-sleeve crewneck. Tracksmith, $128
The half-zip pullover is a breathable, layering workhorse. This fitted number is made with seamless construction to keep you comfortable and chafe-free, and it's vented for airflow. Lululemon, $118
Nothing derails a run faster than wind and rain. Minimize both with this three-layer waterproof shell dubbed the Storm Racer Jacket. The double-zip construction is great for layering and ventilation, and when the weather clears, the jacket packs into its own neat little pouch. Patagonia, $269
This is all for nought if you can't stay upright in inclement conditions, so equip your feet with these Norda trail runners. They've got Vibram outsoles to provide traction and support without weighing you down, and the reflective elements on front and back will keep you visible in gloomy weather. Huckberry, $285
You won't get far without a pair of good socks. These wool crew socks are up to the task. Stance, $25
These fitted, stretchy gloves are like a base layer for your hands. On their own they repel water and provide warmth, but they're thin enough to fit under heavier gloves on the coldest days. They also have touch-print fingertips so you can use your phone without losing a digit. Under Armour, $30
This soft, midweight beanie and its fleece ear band will help you stay warm without overheating. The North Face, $28
Unless you're running up some steps in Philadelphia, the sweatsuit is often a better option for post-workout wear. Or if you never leave the house... Either way, 100% cotton sweats don't get much better than these. Reigning Champ, $125 each