Base Layers & Mid Layers offers a wide variety of base, mid layers & thermal underwear to be worn in any conditions. These undergarments are sweat-resistant, quick-dry, and durable. We carry tops and bottoms from high quality brands such as Under Armour, Terramar, and SmartWool. Wearing these performance underwear underneath your outfit ensures a comfortable and dry adventure in the outdoors. Whether you're looking for leggings, tights, thermals, or a layer to keep your torso warm and dry, we have what you are looking for.

SmartWool NTS Micro 150 Pattern Crew for Women


  • Form fitting Jersey knit
  • Stretch stitching
  • Side seams wrap to front
  • Tagless comfort

List: $79.95 $19.96 (25%)

Starting at: $59.99
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Marmot Windridge Short Sleeve Shirt for Men


  • Ultraviolet protection factor (UPF) 50
  • Knit, polyester fabric
  • Tag-free neckline
  • Flat-locked seams
  • Mesh panels

Regular: $30.00 $10.05 (34%)

Starting at: $19.95
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Outdoor Research Echo Tee Shirt for Men


  • Internal Front-Zip Stormflap
  • Adjustable Wire-Brimmed Hood
  • DWR Coated Zippers
  • Welded Construction
  • UPF 15

Regular: $39.00 $19.05 (49%)

Your Price: $19.95
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In Stock + Wish list