Reviews You Can Rely On

Compare Base Layers

Compare Products

select up to 5 products to compare
Score Product Price Our Take
78
$100
Editors' Choice Award
This top is the gold standard for staying warm, dry, and comfortable during and after all of our outdoor adventures
75
$59
Editors' Choice Award
Ounce-for-ounce, this is the strongest base layer available on the market today
75
$110
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
74
$89
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
73
$60
Best Buy Award
A fine Merino base layer at an entry-level pricepoint
72
$129
Implementing new and innovative technology, Patagonia brings us a seamless base layer that feels unbelievable
71
$135
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
70
$49
Best Buy Award
Lightweight, versatile, and affordable, this 3-season powerhouse is ready for warmer-weather adventures
70
$55
Ready for all-day activity, but be prepared with a well-layered system if you're taking this out in the cold
66
$100
This half-merino wool top offers excellent thermoregulation for a midweight, but the mix of elastane reduces dry times compared to other blended options
66
$95
This doesn’t stand out among the crowd, but silently gets the work done without a need for recognition
64
$120
Intricate design and body-mapping technology, but falls somewhat short of hitting the mark in terms of fit
60
$40
A valuable base layer with some unfortunate flaws that undermine performance
59
$50
Ounce-for-ounce, this ultra-thin base layer is by far the warmest of our lightweight selections
55
$45
Excelling in breathability, this lightweight synthetic model is made for working up a sweat in the cold

Ad-free. Influence-free. Powered by Testing.

GearLab is founded on the principle of honest, objective, reviews. Our experts test thousands of products each year using thoughtful test plans that bring out key performance differences between competing products. And, to assure complete independence, we buy all the products we test ourselves. No cherry-picked units sent by manufacturers. No sponsored content. No ads. Just real, honest, side-by-side testing and comparison.

Learn More