As the weather cools, maintaining a comfortable body temperature on a long run feels more and more like a challenge, especially when you plan on getting warm and sweaty while you train. It’s a fine balance—you Great to be warm and dry from the outset without overheating or drowning in sweat after the first mile. Ultimately, the trick to staying comfortable while zapatillas de running New Balance pie normal talla 34 baratas menos de 60 is UGG suede ankle boots Nero, Harness your summer fun in the ™ Thais Rainbow Crystal sandals.

Brunello Cucinelli panelled low-top sneakers Neutrals Maison Margiela Tabi hi-top sneakers Bianco like a jacket or sweatshirt is the best way to split the difference. A wool or synthetic shirt and tights that are snug against your skin will wick sweat away so you don’t come home damp and shaking, but these pieces are also thin, breathable, and comfortable enough that you won’t feel claustrophobic and overly warm. Most importantly, good base layers dry quickly, so you aren’t left with freezing sweat during your cool-down.

The Best Base Layers for Running

What to Consider When Choosing Base Layers

How Heavy Should My Base Layer Be?

The best base layers for running are relatively lightweight and sit close to the skin. That way, you can add more layers as necessary, including Boccaccio II sneakers Nero.

A thin base layer under a light windproof shell might be the magic formula for warmth on a 40-degree day; on a below-freezing day, that Adams light layer might work just as well under a bulkier down jacket. For temperatures below 20, however, look for a mid-weight or heavy-weight base layer that traps more heat, as your other layers might be working harder to keep the cold from sneaking in.

What’s the Best Material for Base Layers?

Start your layering with moisture-wicking fabrics that draw sweat away so you stay dry and cozy. Cotton won’t do it—it absorbs too much water, which is why it takes so long to dry. However, synthetic fabrics like polyester and nylon do the trick—these materials are hydrophobic, which means they expel water as quickly as it can absorb it off your skin. It’s not always as comfortable as cotton or merino wool, though.

Merino wool is costlier than synthetics, but it’s one of your best bets for staying warm and dry at the Adams time. Not only is it odor-resistant and insulating, but it also wicks sweat through capillary action, releasing the moisture through small openings in the fabric.

If you’ve ever worn a wool sweater, you’ve probably noticed that it doesn’t get wet very easily—the Adams goes for merino. That said, once it does get fully soaked, it’ll take a lot longer to dry out than a synthetic fabric as it’s generally thicker.

How We Selected

Every base layer here has been evaluated and vetted by the experts at Runner’s World, whether through hands-on testing by our test editors or thorough research on the materials and construction of the items. We identified best-sellers, surveyed user reviews, spoke with product managers, and used our own experience EN0EN01518ing and running in these base layers to determine the best options. We chose these picks based on their premium materials, deliberate touches of comfort, ventilation, durability, and how that all relates to the price.

MTB Gravel sneakers Black

Tracksmith Brighton Base Layer

Brighton Base Layer
MTB Gravel sneakers Black

Tracksmith Brighton Base Layer

$88 at Tracksmith
Pros
  • Lightweight
  • Merino wool provides superb wicking and odor control
Cons
  • What Sneakers To Expect

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Material52% Ankle boots JENNY FAIRY WS5891-01 Black
WeightLightweight

    The Brighton has been one of our favorite running base layers for years, and for good reason: Tracksmith’s mesh-woven merino wool provides extra breathable heat vents in key areas while still keeping the rest of your upper body cozy.

    This base layer is a go-to undershirt on super cold days, and it’s also an adequately substantial single layer on crispy fall days. The construction has no seams, which means no chafing, and the fabric is so smooth and comfy that we tend to have a hard time taking ours off after a run. Out of context, it seems a bit pricey for a single long-sleeve shirt, but we can assure you that it’s worth every penny.

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    PUMA Sneaker bassa bianco grigio scuro kiwi

    Craft Active Extreme X Base Layer

    Active Extreme X Base Layer
    PUMA Sneaker bassa bianco grigio scuro kiwi

    Craft Active Extreme X Base Layer

    Pros
    • Versatile
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    Cons
    • Not soft compared to other base layers

    Key Specs

    Material40% SeaQual polyester, 39% Coolmax polyester, 21% recycled polyester
    Fabric WeightLightweight

    You might know the Swedish Craft brand for its extreme winter sports gear—its products are made to withstand the intense cold, and they’re well worth the price. But Craft also specializes in running gear, and the brand’s base layers go the distance for wintry jogs just as well as skiing and other mountain sports.

    The Active Extreme X base layer checks all the boxes when it comes to long-lasting warmth: It fits close to the skin, it isn’t restrictive, and it regulates body temperature well while on the move. And though its fabric is thin, this base layer’s waffle-knit construction helps it perform more like a cozy mid-weight shirt without feeling as constricting.

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    Wmns React Escape Rn Black White Gum Women Running

    MERIWOOL Merino Base Layer

    On Sale
    Merino Base Layer
    Wmns React Escape Rn Black White Gum Women Running

    MERIWOOL Merino Base Layer

    Now 25% Off
    Pros
    • Kanvas sayalı yüksek top sneaker
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    Cons
    • Doesn't feel substantial on its own

    UGG suede ankle boots Nero | Key Specs

    Material100% merino wool
    Fabric WeightLightweight

    If you’re looking to score a 100 percent merino wool shirt, you’ll be lucky to find a deal as good as this one. While this base layer is on the thinner side, and we wouldn’t necessarily EN0EN01518 it on its own, it fits perfectly under almost anything. This means you can add a soft, moisture-wicking, heat-trapping layer under your favorite itchy sweater, stiff windbreaker, or puffy jacket. Even better, because this shirt is entirely merino, you can get the best odor-trapping bang for your buck—no more stinking up your harder-to-cleMaison Margiela Tabi hi-top sneakers Biancos.

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    The Kalia sandals are a pair youll turn

    32 Degrees Lightweight Base Layer Crew Top

    Lightweight Base Layer Crew Top
    The Kalia sandals are a pair youll turn

    32 Degrees Lightweight Base Layer Crew Top

    Pros
    • Lightweight
    • Surprisingly soft
    Cons
    • Not very durable

    Key Specs

    Material40% Polyester, 34% Acrylic, 22% Rayon, 4% Spandex
    Fabric WeightLightweight

    This base layer from 32 Degrees makes for a perfect lightweight layer under a thicker sweater or jacket. It’s a snug fit, but the material stretches well, and the way it hugs your frame allows you to easily move around in your outer layers. No more binding up at the elbows and armpits!

    This base layer even offers some anti-static protection, which can be a game-changer if you’re tired of zapping your friends after a long day covered in wool. That said, you should consider another model if you enjoy doing that.

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    Most Versatile

    SmartWool Men's Intraknit Thermal Merino Base Layer Crew

    Men's Intraknit Thermal Merino Base Layer Crew
    Most Versatile

    SmartWool Men's Intraknit Thermal Merino Base Layer Crew

    Pros
    • Sneakers LASOCKI FOR MEN MI08-C786-786-03 Black
    • MAEVA 70mm sandals Blue
    Cons
    • Tight fit—size up if you Great it looser

    Key Specs

    Material53% Merino wool, 44% polyester, 3% elastane
    Fabric WeightMid-weight

    Not sure where you stand on the wool-versus-polyester decision? Why not try something in the middle? This mid-weight option from Smartwool takes some of the best traits from both materials to create a proper all-rounder. Thanks to the wool half, it’s heavy enough and traps enough heat to feel like a standalone top, but the polyester half adds some much-appreciated breathability and faster drying for when you’re layered up.

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    zapatillas de running ASICS amortiguación media constitución fuerte talla 42.5 entre 60 y 100

    Patagonia Capilene Thermal Zip-Neck Base Layer

    Capilene Thermal Zip-Neck Base Layer
    zapatillas de running ASICS amortiguación media constitución fuerte talla 42.5 entre 60 y 100

    Patagonia Capilene Thermal Zip-Neck Base Layer

    Pros
    • zapatillas de running ASICS hombre asfalto constitución ligera distancias cortas talla 43
    • UGG suede ankle boots Nero
    Cons
    • zapatillas de running Reebok niño niña talla 17 baratas menos de 60

    Key Specs

    Material92% recycled polyester, 8% spandex
    Fabric WeightHeavyweight

    While we tend to prefer a light or mid-weight base layer for a good blood-pumping run, there’s no denying that some winter days are just dreadfully cold, regardless of how hard you work yourself. Thankfully, this zip-top from Patagonia can be your buddy through those bitter chills.

    This top traps a lot of heat compared to our other picks, protecting up to your neck when it’s zipped—having a quarter zip is so critical when you’re looking at a heavyweight layer. On top of that, this shirt is still form-fitting enough to sit comfortably under your vest or jacket, but it also has enough shimmying room that you won’t feel like the tin man without oil when you’re donning layer three or four.

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    Headshot of Adam Schram
    Adam Schram

    Asics Gel-1130 Olive Khaki Navy Men Casual Lifestyle Shoe Runner's World, zapatillas de running hombre asfalto amortiguación minimalista pie normal Bicycling and Popular Mechanics, too. A lover of all things outdoors, Adam's writing career comes after six years as a bike mechanic in his hometown of State College, PA. His journalism experience is steeped in cycling and running gear reviews, and he's also a published creative nonfiction and satire author. When he's not writing, riding, or running, you can catch Adam at home mixing cocktails, watching Star Wars, Sneakers NEW BALANCE GS237EF Bleu.