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.

Sale

Regular: $38.95 $4.00 (10%)

Starting at: $34.95
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Sale

Regular: $60.00 $25.05 (42%)

Your Price: $34.95
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Sale

Ibex Woolies 2 Zip T-Neck for Men

SKU: IBX2ZM

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

Regular: $80.95 $6.00 (7%)

Starting at: $74.95
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Sale

ColdPruf Authentic 93 Crew for Men

SKU: CLDACM

  • Two layer engineering
  • Natural warmth barrier
  • Tagless
  • Flat seams

Regular: $20.99 $4.00 (19%)

Starting at: $16.99
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SmartWool Midweight Pattern Crew Top for Women

SKU: SMTMPCW

  • 100% Merino Wool
  • Form Fitting
  • Jacquard Knit
  • Back Body Seam
  • Shoulder Panels

List: $105.00

Your Price: $104.95
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Sale

Mammut Go Warm Longsleeve Zip Baselayer for Men

SKU: MMTGWZM

  • Contoured cut
  • Extended back
  • Zip with zip-store
  • 100% polyester microfiber
  • Merino wool and polyester mix

Regular: $54.95 $10.00 (18%)

Starting at: $44.95
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Sale

ColdPruf Authentic 93 Pants for Men

SKU: CLDAPM

  • Two layer engineering
  • Natural warmth barrier
  • Tagless
  • Flat seams

Regular: $20.99 $3.00 (14%)

Your Price: $17.99
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SmartWool Midweight Crew Top for Women

SKU: SMTMDCW

  • Upf 50+ protection
  • Back Body Seam Wraps
  • Shoulder Panels
  • Flatlock Seam Construction
  • Heat Transfer Logo

List: $95.00

Your Price: $94.95
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SmartWool NTS Micro 150 Pattern Crew for Men

SKU: SMTMPM

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

Your Price: $79.95
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Minus33 Kinsman MidWeight Turtleneck for Men

SKU: MINMTM

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

List: $75.99 $11.00 (14%)

Your Price: $64.99
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NRS Women's H2Core Silkweight Long-Sleeve Shirt

Azure Blue Heather

SKU: NRSH2WLSS

Your Price: $39.95
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Top Rated Gear

List: $75.99 $11.00 (14%)

Your Price: $64.99
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Minus33 Chocorua Men's Mid-Weight Crew

SKU: MINMWCM

  • 100% 18.5 Micron Merino Wool
  • 230 g/m2 Interlock knit construction
  • Flat lock seams

List: $65.99 $9.50 (14%)

Your Price: $56.49
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Minus33 Kancamagus Men's Mid-Weight Bottoms

SKU: MINMWBM

  • 100% 18.5 Micron Merino Wool
  • 230 g/m2 Interlock knit construction
  • Flat lock seams

List: $65.99 $9.50 (14%)

Your Price: $56.49
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SmartWool NTS Midweight 250 Pattern Bottom for Men

SKU: SMTPNM

  • Heaviest baselayer fabric
  • Covered elastic waistband
  • Traditional fly design
  • Flatlock seams

Your Price: $99.99
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Sale

ColdPruf Authentic Wool Plus 92 Crew for Men

SKU: CLDAWCM

  • Ring spun cotton, Merino wool, nylon
  • Combed, ring spun cotton
  • Inner layer body heat
  • Rib knit cuffs

Regular: $22.99 $3.00 (13%)

Starting at: $19.99
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NRS Women's H2Core Silkweight Short-Sleeve Shirt

Azure Blue Heather

SKU: NRSH2WSSS

Your Price: $34.95
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SmartWool NTS Midweight 250 Zip T for Women

SKU: SMTZTW

  • Standalone or under-layer
  • 8 inch center front zip
  • Back seam wraps to front
  • Breathable, odor resistant

Your Price: $99.99
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