REI Co-op Lightweight Base Layer Long-Sleeve Crew Top - Men's

REI Co-op Merino Midweight Base Layer Crew Top - Men's

REI Co-op 650 Down Hoodie - Men's

Odlo Performance Light Crew Shirt - Men's

REI Co-op Midweight Base Layer Half-Zip Top - Men's Tall Sizes

REI Co-op Active Pursuits Long-Sleeve T-Shirt - Men's

Long Sleeve Base Layers

REI Co-op Lightweight Base Layer Half-Zip Top - Men's

REI Co-op Silk Long Underwear Crew Shirt - Men's Tall Sizes

REI Co-op Lightweight Base Layer Long-Sleeve Crew Top - Men's Tall

Stay insulated and dry during highly aerobic winter fun—such as skiing, hiking and snowshoeing—in the REI midweight base layer crew top.

Midweight Base Layer Crew Top - Men's