Base Layers & Mid Layers

SunnySports.com 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 Men

SKU: SMTMPM

  • Form fitting Jersey knit
  • Crew with set-in sleeves
  • Shoulder panels
  • Flatlock seam construction

List: $79.95 $19.96 (25%)

Your Price: $59.99
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Top Rated Gear

List: $89.99 $13.50 (15%)

Your Price: $76.49
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SmartWool NTS Micro 150 Crew for Men

SKU: SMTCRM

  • Form fitting Jersey knit
  • Crew neck, set-in sleeves
  • Shoulder panels
  • Flatlock seam construction

List: $74.95 $17.96 (24%)

Starting at: $56.99
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SmartWool Midweight Zip T for Women

SKU: SMTMZTW

  • 100% Merino Wool
  • Form fit
  • 12 in. center front zip
  • Back Body Seam
  • Flatlock seam construction eliminates chafing

List: $100.00 $25.05 (25%)

Your Price: $74.95
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SmartWool NTS Micro 150 Crew for Women

SKU: SMTCRW

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

List: $74.95 $17.96 (24%)

Your Price: $56.99
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SmartWool NTS Micro 150 Pattern Crew for Women

SKU: SMTMPW

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

List: $79.95 $19.96 (25%)

Starting at: $59.99
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List: $79.99 $20.00 (25%)

Your Price: $59.99
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List: $75.00 $18.01 (24%)

Your Price: $56.99
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Sale

SmartWool NTS Microweight 150 Pattern Crew Top for Women

SKU: SMTMWPCW

  • Soft, Non-Irritating Material
  • Shaped Bottom Hem
  • Lightweight
  • UPF Rating Of 30

Regular: $69.99 $25.00 (36%)

Your Price: $44.99
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Sale

Regular: $72.99 $13.00 (18%)

Your Price: $59.99
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SmartWool NTS Micro 150 Pattern Bottom for Women

SKU: SMTBOW

  • Form fitting natural rise
  • Jersey knit with UPF 30
  • Wide elastic waistband
  • Flatlock seam construction

List: $79.95 $19.96 (25%)

Your Price: $59.99
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List: $75.00 $18.01 (24%)

Your Price: $56.99
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SmartWool NTS Micro 150 Bottom for Women

SKU: SMTBTW

  • Lightweight base layer
  • Form fitting Jersey knit
  • Flatlock seams
  • Elastic waistband

List: $74.95 $17.96 (24%)

Your Price: $56.99
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Sale

SmartWool NTS Micro 150 Bottom for Men

SKU: SMTBTM

  • Lightweight base layer
  • Form fitting Jersey knit
  • Flatlock seams
  • Fully functional fly

Regular: $62.99 $20.00 (32%)

Starting at: $42.99
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