The best winter running tops are essential in every runner's wardrobe. It may be cold, dark and miserable outside, but thanks to the latest high-tech fabrics, the appalling weather is no longer a valid excuse to skip training sessions.
We've put in the miles in the best new running tops to see which will keep you the warmest without leaving you feeling like you're running in a duvet (in a nice way). Below are our current favourites from brands such as Arc'teryx, Finisterre, Nike and more.
We also have a general guide to the best base layers for various activities. For even more running gear roundups, look at T3's best running shoes, the best running shoes for women and the best trail running shoe guides.
Best winter running tops to buy right now
Why you can trust T3 Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test.
Best winter running top overall
Type: long-sleeve base layer
Material: 89% Merino Wool / 11% Nylon, 170 gsm
Waterproof: no
+ Stylish design
+ Excellent heat management
+ Merino-powered odour control
- Too thin on its own when it's really cold
New England-based but Old English at heart, Tracksmith make vintage-inspired running gear using natural materials. Their 'Chariots of Fire' esthetic is a welcome change from the typical super technical, pro-athlete-inspired kit, but it has been designed to perform when needed.
Designed to be worn repeatedly without washing it too often, the Harrier Long Sleeve top is made using merino wool, which helps wick sweat quickly and manage odour.
The Harrier is far from baggy, but it has a somewhat roomier cut that allows you to wear a t-shirt underneath if you want to. Plus, thanks to seven different colourways, you can find one that matches the rest of your running outfit the most.
Our rating: 5 out of 5 stars
Best winter running top for warmth
Type: hoody
Material: 100% polyester with FC0 yarn and DAO finish
Waterproof: no, but DWR finish repels water
+ Warm and comfortable to wear
+ Comes from a Fair Trade-certified factory
+ Superb moisture-management
- Not the most wind-proof
On cold days, when you really don't want to head out for a run, Arc'teryx's Cormac Heavyweight Hoody can help you get through the front door, thanks to the Phasic AR II material, which provides stretch and sun protection and is stitched for a smooth finish next to the skin.
Although it isn't waterproof, the Cormac has an FC0-DWR finish that repels moisture and an antimicrobial treatment that provides lasting odour resistance. The hood can potentially accommodate a helmet, although it's unlikely that many trail runners will use one for their sessions.
Our rating: 5 out of 5 stars
Best 100% merino winter running top
Type: long-sleeve base layer
Material: 100% Superfine Merino wool
Waterproof: no
+ Excellent sustainability credentials
+ Moisture-wicking materials
+ Extremely comfortable
- Not for high-octane activities
What can we say? We love Finisterre, and the Eddy 2.0 base layer represents everything we adore about the brand. It's made from 100% superfine merino wool and is extremely comfortable, as well as fast-wicking and less prone to smelling. Better still, this base layer puts sustainability first, making you feel better about your purchase.
If you know Finisterre, you know that everyone at the company knows the sheep that provided wool for the Eddy 2.0 by name and have spent at least a month caring for the animal – that's how close they are to their suppliers. The only thing is, the Eddy 2.0 isn't designed for super-intense sessions; you're better off wearing it for slow-paced runs. Otherwise, you should order it right now.
Our rating: 5 out of 5 stars
Best waterproof winter running top
Type: long-sleeve base layer
Material: 100% Superfine Merino wool
Waterproof: yes, 20,000 mm water column
+ Completely waterproof
+ PTFE- and PFC-free
- Not insulated as such
The On Waterproof Anorak combines everything we love about waterproof jackets and running tops to create the ultimate downpour-ready shell for people who like moving around fast outdoors. As expected from On, this is a premium garment that carries a premium price tag, but it's worth every penny.
Featuring an elasticated tie hood and hidden vents for increased airflow, On's waterproof wonder packs into its own inner pocket for easy portability when not in use. Total wind- and waterproofing are achieved using a three-layer membrane; better still, the technology is entirely PTFE- and PFC-free.
Our rating: 4 out of 5 stars
Best base layer winter running top
Type: long-sleeve base layer
Material: 79% Nylon, 21% Elastane
Waterproof: no
+ Close-to-the-body-fit to keep you warm
+ Stretchy and breathable fabric
- Not ideal for people with larger bodies
Lululemon moved away from just being a yoga brand years ago. These days, you can find premium workout apparel of every kind in the company's portfolio, from running shoes to swimwear and more. The SenseKnit Running Long Sleeve is designed specifically for running and offers a four-way stretch to help you keep toasty during your sessions.
You don't have to worry about overheating, though, as the SenseKnit technology enables athletes to run free without restrictions using targeted support and ventilation. This close-fitting running top might not be the top choice for those with larger bodies, but if you're of a slender type, you might want to consider adding the SenseKnit Running Long Sleeve to your arsenal.
Our rating: 4 out of 5 stars
Best 1/2 zip winter running top
Type: 1/2 zip long sleeve
Material: 93% polyester/7% elastane
Waterproof: no, but DWR finish repels water
+ Reflective elements
+ DWR finish to keep you dry
- Front of the top is short
- Not sustainably made
If you need a no-nonsense running top for when the weather gets cold, put on the Nike Repel Therma-FIT 1/2-Zip Running Top, and you're ready to go. Featuring the Therma-FIT technology that uses your body's heat to keep you warm, this top will help you plough through all your fall/autumn sessions.
Some reviewers say the front of the top isn't long enough to cover the belly sufficiently, which might be something to consider if you're of a larger frame. If you aren't, however, the relaxed fit allows for extra layers underneath when the weather gets really cold.
Our rating: 3 out of 5 stars
How to buy the best winter running top for you
When covering the miles over the colder months, you can just throw on a hoodie to keep warm, but if you plan on being out for a while and putting some effort in, you’ll soon suffer under the weight of sweat-soaked cotton. You’ve got two main options: synthetic polyester or natural merino wool (or a blend of the two). But which is best when it comes to warmth and performance?
Merino is one of the finest (in thickness terms) fibres in nature, which means - unless you’re particularly sensitive - it’s itch-free and super soft. It’s also excellent at absorbing water and can soak up to 35% of its weight in water, expelling it into the air to regulate your temperature. This means you stay dry and comfortable in warmer climates and insulated on colder days.
Merino is also odour resistant, and traps stink in the fibres, releasing only when the item gets washed. Due to the lanolin and keratin wax produced by the sheep, these naturally antibacterial and antimicrobial properties mean merino base layers can be worn for days without needing to be washed.
Synthetic fibres like polyester are lighter than merino and don’t absorb water, so fabrics stay dryer for longer during intense workouts, which helps with overheating. Synthetic layers can also offer impressive breathability, helping you stay cool when things heat up. Synthetic fibres are also harder to wear and, on the whole, cheaper than natural alternatives, but you won’t enjoy the same warmth.
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