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 Men's Lightweight Half-Zip Top
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Our most versatile technical top is built for use on the trail or the water. Stretchy, quick drying and with HeiQ Pure odor control, it will keep you comfortable when you’re working hard in conditions ranging from cool to hot.
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This long-sleeve pullover is crafted from breathable EcoTec micro polyester and tailored for a comfortable fit. , Product Detail:, Half Zip , Long
THE CLASSIC LONG SLEEVE HALF ZIP PULLOVER - White IS66006
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Zipped Technical Long-Sleeved Top - Men - Ready-to-Wear