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.

List: $95.00 $23.00 (24%)

Your Price: $72.00
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SmartWool Microweight Bottom for Men

SKU: SMTMCBM

  • Made of 100% Merino Wool
  • Form Fit - Natural Rise
  • Jersey knit
  • Coats Eloflex thread
  • Flatlock seam construction

Regular: $62.99 $20.00 (32%)

Your Price: $42.99
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List: $139.99 $34.99 (25%)

Your Price: $105.00
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List: $42.95 $8.96 (21%)

Your Price: $33.99

In Stock + Wish list

List: $90.00 $22.01 (24%)

Your Price: $67.99
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List: $89.99 $22.00 (24%)

Your Price: $67.99
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Sale

Regular: $79.99 $24.00 (30%)

Your Price: $55.99
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SmartWool Midweight Bottom for Men

SKU: SMTMBM

  • Form Fit 
  • UPF 50+
  • Traditional fly design
  • Flatlock seam construction 
  • Two color choices

List: $95.00 $25.01 (26%)

Your Price: $69.99
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List: $79.99 $20.00 (25%)

Your Price: $59.99
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In Stock + Wish list

List: $75.00 $18.01 (24%)

Your Price: $56.99
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In Stock + Wish list

List: $99.99 $24.99 (25%)

Your Price: $75.00
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In Stock + Wish list

List: $99.99 $25.00 (25%)

Your Price: $74.99
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SmartWool Midweight Bottom for Women

SKU: SMTMBW

  • Fabric Covered Elastic Waistband
  • 100% Merino Wool
  • Form Fit - Natural Rise
  • Interlock Knit
  • UPF 50+

List: $94.95 $26.00 (27%)

Starting at: $68.95
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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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Sale

Regular: $75.99 $20.00 (26%)

Your Price: $55.99
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In Stock + Wish list

List: $95.00 $23.00 (24%)

Your Price: $72.00
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In Stock + Wish list

List: $125.00 $31.01 (25%)

Your Price: $93.99
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SmartWool Midweight 250 Bottom for Kids

SKU: SMTKB

  • Form fitting
  • Interlock knit
  • Elastic waistband
  • Flatlock seam construction

Regular: $49.99 $15.00 (30%)

Starting at: $34.99
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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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In Stock + Wish list