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Score Product Price Our Take
Editors' Choice Award
This top is the gold standard for staying warm, dry, and comfortable during and after all of our outdoor adventures
Editors' Choice Award
Ounce-for-ounce, this is the strongest base layer available on the market today
Like the award-winning bottoms, this 100% Merino top is a near ideal midweight option, offering an impressive blend of warmth and breathability for winter athletics
A relaxed fit merino wool and recycled polyester blended top that offers an ideal combination of breathability and warmth to carry you through the shoulder seasons
Best Buy Award
A fine Merino base layer at an entry-level pricepoint
Implementing new and innovative technology, Patagonia brings us a seamless base layer that feels unbelievable
Top Pick Award
A high-performance value, with a revolutionary design that will appeal to anyone who spends most of their time in the backcountry
Best Buy Award
Lightweight, versatile, and affordable, this 3-season powerhouse is ready for warmer-weather adventures
Ready for all-day activity, but be prepared with a well-layered system if you're taking this out in the cold
This doesn’t stand out among the crowd, but silently gets the work done without a need for recognition
This half-merino wool top offers excellent thermoregulation for a midweight, but the mix of elastane reduces dry times compared to other blended options
Intricate design and body-mapping technology, but falls somewhat short of hitting the mark in terms of fit
A valuable base layer with some unfortunate flaws that undermine performance
Ounce-for-ounce, this ultra-thin base layer is by far the warmest of our lightweight selections
Excelling in breathability, this lightweight synthetic model is made for working up a sweat in the cold

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