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.

Your Price: $169.00
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Your Price: $169.00
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Your Price: $149.00
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SmartWool PhD Wind Tight for Men

SKU: SMTWTM

  • PhD performance
  • 360 degree reflectivity
  • Drawcord at waist
  • Windproof front panel

Your Price: $139.99
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Arc'teryx Rho AR Zip Neck for Women

SKU: ARCRAZNW

  • Moisture-wicking
  • Great warmth-to-weight ratio
  • Flatlock construction
  • Collar zipper

Your Price: $139.00
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Arc'teryx RHO AR Zip Neck for Men

SKU: ARCRAZNM

  • Moisture wicking
  • Great warmth-to-weight ratio
  • Flatlock construction
  • Collar zipper

Your Price: $139.00
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SmartWool PhD Tech Tight for Men

SKU: SMTTGM

  • PhD performance
  • 360 degree reflectivity
  • Drawcord at waist
  • Form fit and mid rise

Your Price: $125.00
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SmartWool PhD Wind Zip T for Men

SKU: SMTWZM

  • PhD performance
  • Windproof front panel
  • Zipper with chin guard
  • Moisture wicking

Your Price: $119.99
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Arc'teryx RHO AR Bottom for Men

SKU: ARCRABM

  • Moisture-wicking
  • Breathable
  • Great warmth-to-weight ratio
  • Quick drying

Your Price: $119.00
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Ibex Woolies 3 Pullover for Women

SKU: IBX3PW

  • Breathable
  • Anti-odor
  • Raglan sleeves
  • Brushed exterior

Your Price: $115.00
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Ibex Woolies 3 Bottoms for Men

SKU: IBX3BM

  • Breathable
  • Anti-odor
  • Gusseted crotch
  • Flatlock seams

Your Price: $110.00
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SmartWool NTS Midweight 250 Pattern Zip T for Women

SKU: SMTPZW

  • Midweight baselayer
  • Shoulder panels
  • Flatlock seams
  • Body enhancing fit

Your Price: $109.99
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Ibex Woolies 3 Hoody for Men

SKU: IBX3HM

  • Breathable
  • Anti-odor
  • Thumb holes in sleeves
  • Flatlock seams

List: $155.00 $46.05 (30%)

Your Price: $108.95
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SmartWool NTS Midweight 250 Pattern Crew for Women

SKU: SMTRPW

  • Body enhancing fit
  • Flatlock seams
  • Offset shoulder panels
  • Interlock knit

Your Price: $105.00
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SmartWool NTS Midweight 250 Pattern Crew for Men

SKU: SMTPMM

  • Set-in sleeves
  • Flatlock seams
  • Form Fit
  • Interlock knit

Your Price: $105.00
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SmartWool NTS Midweight 250 Color Block Crew for Men

SKU: SMTCBM

  • Set-in sleeves
  • Flatlock seams
  • Form fit
  • Interlock knit

Your Price: $105.00
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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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Minus33 Denali Men's Expedition Weight Full Zip Top

SKU: MINEFM

  • Merino wool
  • Interlock construction
  • Flat lock seams
  • Rib knit cuffs

List: $119.99 $18.00 (15%)

Your Price: $101.99
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Icebreaker Tech Top Long Sleeve Midweight Crewe for Women

SKU: ICBTLMCW

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

List: $109.99 $10.00 (9%)

Starting at: $99.99
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