Best Base Layers from Top Stores

Updated October 11, 2026

Compare the best base layers from top stores in one place.

Base layers here cost between $70 and $138. They are typically made from thermal fabrics such as micro-modal, merino blends, or synthetic polyester that trap heat while moving moisture away.

Choose a fit that is snug but not restrictive; a close fit allows the layer to work as a second skin. Look for flatlock seams to reduce irritation and consider weight (midweight vs lightweight) based on climate.

For colder days, opt for thicker, thermal-treated fabrics, while a lighter micro-modal works well for milder temperatures. Check for features like a brushed interior for added warmth.

Questions

Do base layers need to be tight?

They should be close-fitting to retain heat, but not so tight they limit movement.

Can I wear a base layer under regular clothes?

Yes, they are thin enough to layer under everyday outfits for extra warmth.

What material is best for cold weather?

Synthetic blends with brushed interiors or merino wool provide good insulation.