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First half-mile cold; next 3 miles sweaty; lunch break cold. Don't stress—the REI Co-op lightweight half-zip long-sleeve base layer wicks and breathes to keep you comfortable all day.
REI Co-op Lightweight Base Layer Half-Zip Top - Men's
REI Co-op Lightweight Base Layer Half-Zip Top - Women's
REI CO-OP TECH Base Layer Women's S Gray 1/4 Zip Long Sleeve
10 Best Thermal Underwear 2024, Tested by Experts
REI Co-op Lightweight Base Layer Half-Zip Top - Men's
REI Co-op Lightweight Base Layer Half-Zip Top - Men's
Item 923212 - REI Co-op Lightweight Base Layer Half-Zip Top
REI Co-op Lightweight Base Layer Half-Zip Top - Men's, REI Co-op
Item 886952 - REI Lightweight Base Layer Half-Zip Top - Men's
