The world's most in-depth and scientific reviews of gear

Compare Base Layers

Top 8 Product Ratings

select up to 5 products
Score Product Price Our Take
Editors' Choice Award
A staff favorite, this top is the gold standard for staying warm, dry, and comfy on all your ventures and outdoor shenanigans.
Implementing new and innovative technology, Patagonia brings us a seamless base layer that feels unbelievable.
Top Pick Award
Take the best of merino wool and polyester, smashed together to create an ideal lightweight base layer.
This doesn’t stand out among the crowd, but silently gets the work done without a need for recognition.
Best Buy Award
Ready for all-day activity, but be prepared with a well-layered system if you're taking this out in the cold.
Intricate design and body-mapping technology, but falls somewhat short of hitting the mark in terms of fit.
A loose fitting, comfortable merino wool top for trail and for town.
Excelling in breathability, this lightweight synthetic model is made for working up a sweat in the cold.