Where to Buy
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Here's what other sites are saying:
Whether you're hiking, skiing, snowshoeing or mountaineering, the men's REI Heavyweight Crew long underwear shirt will help you feel warmer, drier and more comfortable.
REI Heavyweight Crew Long Underwear Top
REI Heavyweight MTS Long-Sleeve Crew
REI Heavyweight Polartec Power Dry Crew
REI Heavyweight Half-Zip Shirt
Smartwool Midweight Zip T
$46 - $99
Icebreaker Everyday Long Sleeve Crewe
$60 - $70
Patagonia Capilene 4 Expedition Weight Zip-Neck
Arc'teryx Rho LT Zip Neck
$81 - $125