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 Warm Longsleeve Zip Neck for Men

SKU: NFCWLZMN

  • Hollow core
  • Lightweight wicking
  • Quick drying
  • Stain resistant
  • Hollow core fibers

Regular: $39.95 $10.00 (25%)

Your Price: $29.95
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Sale

The North Face Warm Longsleeve Zip Neck for Men - Previous Season

SKU: NFCWLZNMXLBK

  • Hollow core and airbrushed fibers
  • Lightweight
  • Quick drying
  • Stain and odor resistant
  • Flat-locked seams

Regular: $60.00 $30.05 (50%)

Your Price: $29.95

In Stock + Wish list

Under Armour Amplify Thermal Crew for Men

SKU: UNAATM

  • Waffle textured
  • 4 way stretch
  • Moisture transport
  • Anti odor technology

List: $39.99 $12.04 (30%)

Your Price: $27.95
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Sale

SmartWool Midweight Zip T for Men

SKU: SMTMZM

  • 100% Merino Wool
  • Form fit
  • 10 in. center front zip
  • Flatlock seam construction eliminates chafing
  • Shoulder panels

Regular: $85.99 $30.00 (35%)

Starting at: $55.99
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Sale

Terramar Trailhead TR Half-Zip 1.0 Crew for Men - Black

SKU: TRMT1ZM

  • Color: black
  • Material: 100% micro polyester
  • Two-sided knit construction
  • Antimicrobial feature
  • Flat-seam construction

Regular: $15.95 $1.00 (6%)

Starting at: $14.95
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Under Armour Base 2.0 Crew for Men

SKU: UNAB2CM

  • Mid-weight protection
  • Soft, brushed interior
  • 4-way stretch fabrication
  • Moisture transport system

List: $54.99 $16.04 (29%)

Starting at: $38.95
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Sale

Terramar Men's Helix Short-Sleeve Polyester Crew T-Shirt

5.0
(1 review)
Ratings Distribution
  • 5 Stars
     
    (1)
  • 4 Stars
     
    (0)
  • 3 Stars
     
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  • 1 Stars
     
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SKU: TRMMHS

  • ec2 Qwik-Dri Thermoregulation Comfort Technology
  • Anti-Microbial Fabric
  • Air pockets for Improved Insulation
  • Soft, Breathable and Fast-Drying
  • UPF Rating 25+

Regular: $11.95 $3.00 (25%)

Starting at: $8.95
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List: $59.99 $18.04 (30%)

Your Price: $41.95
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List: $99.99 $25.00 (25%)

Your Price: $74.99
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Icebreaker Midweight Tech Top Long Sleeve Crewe for Men

SKU: ICBMTLCM

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

List: $109.99 $10.00 (9%)

Starting at: $99.99
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Polarmax 4-Way Stretch Zip Mock for Men

4.0
(1 review)
Ratings Distribution
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    (0)
  • 4 Stars
     
    (1)
  • 3 Stars
     
    (0)
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SKU: PMXSSZMM

  • 4-Way stretch XG fabric
  • Quick drying
  • Scent prevent anti-microbial
  • Comfortable flat seams
  • Athletic fit

Your Price: $34.95
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List: $95.00 $23.00 (24%)

Your Price: $72.00
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Sale

ColdPruf Basic 90 Crew for Men

SKU: CLDBCM

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

Regular: $11.99 $1.00 (8%)

Starting at: $10.99
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Top Rated Gear

Terramar Men's Thermolator II Crew with Mesh Shirt

4.5
(4 reviews)
Ratings Distribution
  • 5 Stars
     
    (2)
  • 4 Stars
     
    (2)
  • 3 Stars
     
    (0)
  • 2 Stars
     
    (0)
  • 1 Stars
     
    (0)

SKU: TRMMT2C

  • 86% Micro-Polyester and 14% Spandex
  • Qwik-Dri Thermoregulation Comfort Technology
  • Two Fabric Jersey and Mesh Construction
  • Anti-microbial
  • Fabric Weight: 180 grams (5.36 oz.)

Your Price: $18.95
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Marmot ThermalClime Pro LS 1/2-Zip for Men

SKU: MRMTP2ZM

  • Quick drying
  • Moisture wicking
  • Stretch elastane
  • Flat lock seams

Your Price: $60.00
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List: $70.49 $10.50 (15%)

Your Price: $59.99
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List: $105.00 $25.01 (24%)

Your Price: $79.99
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Sale

Regular: $42.95 $8.00 (19%)

Your Price: $34.95
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Sale

Columbia Midweight II Long Sleeve Top for Men

SKU: COLM2LTM

  • Thermal reflective
  • Wicking technology
  • Active fit
  • Antimicrobial

Regular: $45.00 $21.05 (47%)

Your Price: $23.95
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