Where to Buy
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Here's what other sites are saying:
The REI Silk long underwear bottoms are smooth, soft and incredibly comfortable. They'll help keep you warm on a cold day and they work great under additional layers.
- REI refers to the men's version
REI Heavyweight Long Underwear Bottoms
REI Lightweight Long Underwear Bottoms
REI Midweight Long Underwear Bottoms
REI Silk Bottoms
Patagonia R1 Pants
$99 - $119
Patagonia Merino Air Bottoms
Coldpruf Platinum Pants
Ibex Woolies 2 Bottom
$71 - $95