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 Midweight 250 Crew for Men

SKU: SMTMIM

  • Midweight baselayer
  • Set-in sleeves
  • Flatlock seams
  • Form Fit

Your Price: $94.95
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Terramar Cloud Nine CS Half-Zip 2.0 for Women

SKU: TRMCNH2W

  • Stretch jersey
  • Moisture wicking
  • Fast drying
  • Breathable

Your Price: $28.95
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SmartWool NTS Midweight 250 Crew for Women

SKU: SMTMIW

  • Midweight baselayer
  • Body enhancing fit
  • Flatlock seams
  • Moisture wicking

Your Price: $95.00
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Under Armour Base 2.0 1/4 Zip for Men

SKU: UNAB2ZM

  • Moisture wicking
  • Anti-odor technology
  • 4-way stretch
  • Fast drying

Regular: $41.95 $2.00 (5%)

Your Price: $39.95
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Terramar Cloud Nine CS Scoop 2.0 Shirt for Women

SKU: TRMCNS2W

  • Stretch jersey
  • Moisture wicking
  • Fast drying
  • Breathable

Your Price: $24.95
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Ibex Woolies 3 Hoody for Women

SKU: IBX3HW

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

Regular: $108.95 $9.00 (8%)

Your Price: $99.95
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SmartWool Midweight 250 Zip T for Kids

SKU: SMTMK

  • Midweight baselayer
  • Zipper with chin guard
  • Flatlock seams
  • Moisture wicking

Your Price: $59.95
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Regular: $34.95 $5.00 (14%)

Starting at: $29.95
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Terramar Cloud Nine CS Tight 2.0 for Women

SKU: TRMCNT2W

  • Thermolator II fabric
  • EC2 Qwik-Dri technology
  • Anti microbial
  • UPF 25 sun protection

Your Price: $24.95
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The North Face Light Boot Top Bottom for Men

SKU: NFCLBTBM2XBK

  • Elastic logo waist
  • Flat-locked seams
  • Fly opening
  • Three-quarter length
  • Moisture-wicking polyester knit fabric

Regular: $45.00 $25.05 (56%)

Your Price: $19.95

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Ibex Woolies 3 Pullover for Men

SKU: IBX3PM

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

List: $80.95 $6.00 (7%)

Your Price: $74.95
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Icebreaker Lightweight Oasis Long Sleeve Crewe for Men

SKU: ICBLOLCM

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

List: $89.99 $22.00 (24%)

Starting at: $67.99
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Mammut Go Warm Baselayer 3/4 Pants for Women

SKU: MMTGW3PW

  • Contoured cut
  • 100% polyester microfiber
  • Antimicrobial feature
  • Merino wool and polyester blend

List: $49.00 $19.05 (39%)

Starting at: $29.95
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Terramar Men's Thermawool CS 4.0 Pants

SKU: TRMMTW4P

  • Climasense fabric
  • Advanced odor control
  • Wicking, fast drying
  • Retains heat, breathable

List: $34.95 $6.00 (17%)

Starting at: $28.95
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Adidas Terrex Icesky 1/2 Zip Long Sleeve for Women

SKU: ADSTIZLW

  • Climawarm Technology
  • FORMOTION Technology
  • 1/2-Zip 
  • Fitted Collar

Regular: $65.00 $33.05 (51%)

Your Price: $31.95
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Terramar Ecolator CS Fleece Half-Zip 3.0 for Women

SKU: TRMECH3W

  • Comfort in all seasons
  • Antimicrobial
  • Heavyweight
  • Breathable

Your Price: $38.95
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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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Icebreaker Lightweight Oasis Leggings for Men

SKU: ICBLOLM

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

Your Price: $89.99
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Under Armour Coldgear Infrared Devo 1/4-Zip for Men

SKU: UNACIDZM

  • Dual layer fabric
  • ColdGear infrared tech
  • 4 way stretch
  • Moisture transport

List: $59.95 $10.00 (17%)

Your Price: $49.95
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Mammut Go Warm Longsleeve Baselayer for Women

SKU: MMTGWLW

  • Contoured cut
  • Extended back
  • 100% Polyester microfiber
  • Merino wool and polyester mix
  • Antimicrobial feature

List: $75.00 $40.05 (53%)

Starting at: $34.95
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