REI Co-op Merino 185 Long-Sleeve Half-Zip Base Layer Top vs Smartwool Merino 250

  • Made for warmth
  • Comfortable
  • Breathable
  • Good quality
  • Runs a bit small
  • Great for cold weather activities
  • Not too tight or too loose
  • Wicks sweat away from the body
  • Base layer is 100% merino wool

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