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

The North Face Light Tight for Women

SKU: NFCLTW

  • Elastic logo waist
  • Flat locked seams
  • Ankle length
  • Moisture wicking

Regular: $45.00 $18.05 (40%)

Your Price: $26.95
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Adidas Techfit 3/4 3-Stripe Tight for Women

SKU: ADS34T3S

  • Compression fit
  • Moisture wicking
  • Flat seams

Your Price: $40.00
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Marmot ThermalClime Pro Boot Tight for Men

SKU: MRMTPBTM

  • Flat locked seams
  • Gusseted crotch
  • Recycled polyester
  • Polartec technology

Your Price: $42.00
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Sale

ColdPruf Performance 98 Pants for Men

SKU: CLDPRPM

  • Single layer engineering
  • Max dryness, antimicrobial
  • Moisture management
  • Polyester, spandex

Regular: $18.99 $2.00 (11%)

Starting at: $16.99
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List: $54.99 $16.04 (29%)

Your Price: $38.95
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Adidas Ultimate 3/4 Tight for Women

SKU: ADSUT34T

  • Wide elastic waistband
  • Climalite fabric
  • Fitted fit
  • Adidas logo on hip

Your Price: $38.00
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Marmot ThermalClime Pro Tight for Women

SKU: MRMTPTW

  • Flat locked seams
  • Gusseted crotch
  • Moisture wicking
  • Quick drying

Your Price: $45.00
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Sale

ColdPruf Classic 170 Silk Weight Merino Wool Pants for Women

SKU: CLDCPW

  • Single layer jersey knit
  • Silk weight
  • Merino wool
  • Tagless, flat seams

Regular: $45.99 $5.00 (11%)

Starting at: $40.99
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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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Sale

Polarmax 4-Way Stretch Tights for Men

SKU: PMXSSTM

  • 4-Way Stretch XG Fabric
  • Quick Drying
  • Scent Prevent Anti-Microbial
  • Comfortable Flat Seams
  • Athletic Fit

Regular: $32.95 $5.00 (15%)

Starting at: $27.95
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Sale

Mammut Go Warm Baselayer Pants for Women

3.0 (1 review)
Ratings Distribution
  • 5 Stars
     
    (0)
  • 4 Stars
     
    (0)
  • 3 Stars
     
    (1)
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SKU: MMTGWPW

  • Contoured cut
  • Merino wool and polyester microfiber
  • Antimicrobial feature
  • Body Mapping technology

Regular: $54.00 $24.05 (45%)

Your Price: $29.95
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Terramar Women's Thermawool 100% Merino Wool Pants

3.0 (3 reviews)
Ratings Distribution
  • 5 Stars
     
    (0)
  • 4 Stars
     
    (2)
  • 3 Stars
     
    (0)
  • 2 Stars
     
    (0)
  • 1 Stars
     
    (1)

SKU: TRMWTWP

  • 100% Mercerized Super Soft Merino Wool Jersey
  • Machine-Washable
  • Itch-free
  • Breathable
  • Flatlock Seam Construction

Your Price: $35.95
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Sale

Regular: $75.99 $20.00 (26%)

Your Price: $55.99
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Sale

SmartWool NTS Micro 150 Bottom for Men

SKU: SMTBTM

  • Lightweight base layer
  • Form fitting Jersey knit
  • Flatlock seams
  • Fully functional fly

Regular: $62.99 $20.00 (32%)

Starting at: $42.99
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Sale

Mammut Go Dry Baselayer Pants for Women

SKU: MMTGDPW

  • Stretch material with waffle backing
  • Contoured cut
  • Allows freedom of movement
  • Fast drying
  • Antimicrobial feature to avoid unpleasant odor

Regular: $49.00 $19.05 (39%)

Starting at: $29.95
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Polarmax Double Base Layer Pants for Men

SKU: PMXDBLPM

  • Stretches
  • Wicks
  • Quick drying
  • Breathes
  • Scent prevent antimicrobial

Your Price: $20.95
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Sale

ColdPruf Performance 58 Pants for Women

SKU: CLDPRPW

  • Single layer engineering
  • Max dryness, antimicrobial
  • Moisture management
  • Polyester, spandex

Regular: $18.99 $2.00 (11%)

Starting at: $16.99
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Sale

ColdPruf Enthusiast 97 Pants for Men

SKU: CLDEPM

  • 100 percent polypropylene
  • Single layer engineering
  • Lightweight, comfortable fit
  • Flat seams

Regular: $13.99 $1.00 (7%)

Starting at: $12.99
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