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.
Top Rated Gear

List: $25.95 $5.96 (23%)

Your Price: $19.99
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Top Rated Gear

Polarmax Comp-4 Tech Fleece Crew for Men

5.0
(1 review)
Ratings Distribution
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    (1)
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SKU: PMXC4TCM

  • 4-way power stretch fabric
  • Brushed fleece interior
  • Acclimate dry moisture wicking
  • Athletic fit

Your Price: $38.95
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Sale

SmartWool Midweight Crew Top for Men

4.5
(4 reviews)
Ratings Distribution
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    (3)
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SKU: SMTMDCM

  • 100% Merino Wool
  • Form Fit
  • Crew neck with set-in sleeves
  • Shoulder panels
  • Flatlock seam construction

Regular: $85.99 $37.99 (44%)

Starting at: $48.00
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Top Rated Gear

List: $75.99 $11.00 (14%)

Your Price: $64.99
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Sale

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

5.0
(1 review)
Ratings Distribution
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    (1)
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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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Sale

Regular: $42.95 $8.00 (19%)

Your Price: $34.95
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Sale

Mammut Go Dry Longsleeve Baselayer Shirt for Women

5.0
(1 review)
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    (1)
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SKU: MMTGDLSW

  • Stretch material with waffle backing
  • Contoured cut
  • Fast drying
  • Antimicrobial feature
  • Ultraviolet protection factor (UPF) 20+

Regular: $49.00 $19.05 (39%)

Starting at: $29.95
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Mountain Hardwear Ediza Short Sleeve Shirt for Women

5.0
(1 review)
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    (1)
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SKU: MHWESSW

  • 25 UPF sun protection
  • Antimicrobial finish
  • 25 in. central back length
  • Flat-lock seam construction
  • Panels over shoulders

Regular: $38.00 $23.05 (61%)

Your Price: $14.95
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Mountain Hardwear MicroChill Zip T for Men

5.0
(2 reviews)
Ratings Distribution
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    (2)
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SKU: MHWMCZMN

  • Center Back Length: 28.5 in. / 72 cm.
  • Flat-lock construction
  • High-cut collar
  • Flat-lock construction
  • Velous Micro Fleece

Regular: $55.00 $22.05 (40%)

Starting at: $32.95
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Terramar Men's Helix Long-Sleeve Poly Crew Shirt

5.0
(2 reviews)
Ratings Distribution
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    (2)
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SKU: TRMMHC

  • Lightweight Temperature-Control Layer
  • Highly Breathable and Fast-Drying
  • Non-Sticky
  • 100% Micro Denier Polyester
  • Anti-microbial

Regular: $12.95 $3.00 (23%)

Your Price: $9.95
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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)
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    (2)
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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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Sale

Regular: $11.99 $2.00 (17%)

Starting at: $9.99
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Top Rated Gear

List: $89.99 $13.50 (15%)

Your Price: $76.49
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