The 20 Best Base Layers to Keep You Warm All Winter Long

The best base layer tops and bottoms — from merino wool to bamboo — that'll keep you warm whether you're hiking, skiing or rock climbing this winter.

Meg Lappe, Author at Gear Patrol

The 5 Best Base Layers of 2024

The Death of This Stalwart Brand Marks a Sad Day for Outdoorsmen

Smartwool Merino 250 Base Layer Crew (Pewter Blue/Lead), 43% OFF

Thermal Seamless Base Layer Top Black, 60% OFF

The 6 Best Base Layers in 2024 – Long-Sleeve Running​ Shirts

8 Best Base Layers of 2024 (Tested and Reviewed)

The Death of This Stalwart Brand Marks a Sad Day for Outdoorsmen

All the Best Hiking Gear for Your Outdoor Adventures