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.

Ibex Woolies 1 Zip T-Neck Stripe for Women

SKU: IBXTNW

  • Breathable
  • Anti-odor
  • Set-in sleeves
  • Zippered neck

Your Price: $90.00
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SmartWool PhD Light Long Sleeve Crew for Women

SKU: SMTLLW

  • PhD performance
  • Breathable, quick drying
  • Body mapped mesh panels
  • Merrow seam construction

Your Price: $85.00
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Ibex Woolies 1 Zip T-Neck for Men

SKU: IBX1ZM

  • Breathable
  • Anti-odor
  • Set-in sleeves
  • Zippered neck

Your Price: $85.00
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Icebreaker Oasis Long Sleeve Lightweight Crewe for Women

SKU: ICBOLLCW

  • Odor resistant
  • Breathable
  • Merino wool
  • Offset shoulders
  • Lightweight

Your Price: $89.99
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Sale

Regular: $109.95 $20.00 (18%)

Your Price: $89.95
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Minus33 Katmai Men's Expedition Weight Bottoms

SKU: MINEBM

  • Merino wool
  • Interlock construction
  • Flat lock seams
  • Machine washable

List: $95.99 $14.00 (15%)

Your Price: $81.99
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Your Price: $85.00
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Ibex Woolies 1 Crew Stripe for Men

SKU: IBX15M

  • Breathable
  • Anti-odor
  • Raglan sleeves
  • Flatlock seams

Your Price: $85.00
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Minus33 Kenai Women's Expedition Weight Bottoms

SKU: MINEBW

  • Merino wool
  • Interlock construction
  • Flat lock seams
  • Machine washable

List: $95.99 $14.00 (15%)

Your Price: $81.99
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Minus33 Tanana Women's Expedition Weight Crew

SKU: MINECW

  • Merino wool
  • Interlock construction
  • Flat lock seams
  • Machine washable

List: $95.99 $14.00 (15%)

Your Price: $81.99
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Ibex Woolies 2 Zip T-Neck for Women

SKU: IBXZTW

  • Breathable
  • Anti-odor
  • Flatlock seams
  • Set-in sleeves

List: $115.00 $34.05 (30%)

Your Price: $80.95
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Ibex Woolies 1 Bottoms for Men

SKU: IBX1BM

  • Breathable
  • Anti-odor
  • Wide waistband
  • Flatlock seams

Your Price: $80.00
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Icebreaker Lightweight Oasis Leggings for Men

SKU: ICBLOLM

  • Odor resistant
  • Breathable
  • Lightweight
  • Merino wool
  • Lightweight

Your Price: $89.99
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Minus33 Yukon Men's Expedition Weight Crew

SKU: MINECM

  • Merino wool
  • Interlock construction
  • Flat lock seams
  • Machine washable

List: $95.99 $14.00 (15%)

Your Price: $81.99
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Sale

Regular: $99.95 $15.00 (15%)

Your Price: $84.95
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SmartWool NTS Midweight 250 Boot Top Bottom for Women

SKU: SMTBBW

  • Flatlock seam construction
  • Form fitting, natural rise
  • Interlock knit
  • Breathable, odor resistant

Your Price: $89.99
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SmartWool NTS Midweight 250 Boot Top Bottom for Men

SKU: SMTTBM

  • Boot top length
  • Covered elastic waistband
  • Traditional fly design
  • Interlock knit

Your Price: $90.00
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List: $85.00

Your Price: $84.95
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In Stock + Wish list

List: $85.00

Your Price: $84.95
Select Options

In Stock + Wish list