The 6 Best Base Layers in 2024 – Long-Sleeve Running Shirts
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Staying comfortable while running in the cold is all about layering. These are the best base layers from Patagonia, Smartwool, and more.
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The 6 Best Base Layers in 2024 – Long-Sleeve Running Shirts
![The 6 Best Running Shirts](https://d1nymbkeomeoqg.cloudfront.net/photos/26/93/390781_15844_XXL.jpg)
The 6 Best Running Shirts
![Merino 200 Oasis Long Sleeve Crewe Thermal Top - Icebreaker (US)](https://www.icebreaker.com/dw/image/v2/AAFX_PRD/on/demandware.static/-/Sites-master-catalog/default/dw8ed5cc90/104365/104365A75_1.jpg?sw=1290&sh=1693&sm=fit)
Merino 200 Oasis Long Sleeve Crewe Thermal Top - Icebreaker (US)
![13 Best Women's Long Underwear and Base Layers 2024](https://pyxis.nymag.com/v1/imgs/ad4/f83/6468e59c0fe081861e55ed53915957c685-2-29-Base.2x.rsocial.w600.jpg)
13 Best Women's Long Underwear and Base Layers 2024
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Best cycling baselayers: Top recommendations for road and MTB
![The 5 Best Base Layers of 2024](https://d1nymbkeomeoqg.cloudfront.net/photos/27/13/392786_17060_XL.jpg)
The 5 Best Base Layers of 2024
![The Best Men's Base Layers of 2024](https://s3.us-east-1.amazonaws.com/images.gearjunkie.com/uploads/2023/10/L.L.-Bean-Lightweight-Base-Layers.jpg)
The Best Men's Base Layers of 2024
![Smartwool Classic All-Season Merino Base Layer Long Sleeve Review – iRunFar](https://irunfar.com/wp-content/uploads/Smartwool-Classic-All-Season-Merino-Base-Layer-Long-Sleeve-in-use.jpg)
Smartwool Classic All-Season Merino Base Layer Long Sleeve Review – iRunFar
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Best Base Layers of 2024 – iRunFar
![Best Base Layers of 2024 – iRunFar](https://s3.amazonaws.com/www.irunfar.com/wp-content/uploads/2023/10/29141441/Best-Base-Layers-Cotopaxi-Debajo-Seamless-Baselayer-Crew-Mens-product-photo.jpg)
Best Base Layers of 2024 – iRunFar
![The Best Merino Wool Shirts of 2024](https://s3.us-east-1.amazonaws.com/images.gearjunkie.com/uploads/2023/09/DSC9722.jpeg)
The Best Merino Wool Shirts of 2024
![Best Wool Running Apparel of 2024 – iRunFar](https://s3.amazonaws.com/www.irunfar.com/wp-content/uploads/2024/01/05181458/Best-Wool-Running-Apparel-Smartwool-Classic-Thermal-Merino-Base-Layer-Crew-product-photo.jpg)
Best Wool Running Apparel of 2024 – iRunFar
![Best Base Layers Tested And Reviewed](https://images.bauerhosting.com/affiliates/sites/2/2022/08/best-base-layers-002.jpg?auto=format&w=1440&q=80)
Best Base Layers Tested And Reviewed
![8 Best Base Layers of 2024 (Tested and Reviewed)](https://images.squarespace-cdn.com/content/v1/5b4544e485ede17941bc95fc/994e15ae-278c-4979-be28-fd2fe12b13fd/ibex-woolies-1.jpg)
8 Best Base Layers of 2024 (Tested and Reviewed)