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

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: $24.95
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Terramar Men's Thermolator II Half-Zip with Mesh Shirt

SKU: TRMMT2H

  • 86% Micro-Polyester and 14% Spandex
  • Qwik-Dri Thermoregulation Comfort Technology
  • Two Fabric Jersey and Mesh Construction
  • Ergonomic Zipper Pull
  • Anti-microbial

List: $31.95 $4.00 (13%)

Starting at: $27.95
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Sale

Under Armour Coldgear Infrared Devo 1/4-Zip for Men

SKU: UNACIDZM

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

Regular: $79.99 $30.04 (38%)

Your Price: $49.95
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Sale

ColdPruf Authentic Wool Plus 92 Crew for Men

SKU: CLDAWCM

  • Ring spun cotton, Merino wool, nylon
  • Combed, ring spun cotton
  • Inner layer body heat
  • Rib knit cuffs

Regular: $22.99 $2.00 (9%)

Starting at: $20.99
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Top Rated Gear

List: $75.99 $11.00 (14%)

Your Price: $64.99
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Sale

Under Armour Coldgear Infrared Devo Crew for Men

SKU: UNACIDCM

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

Regular: $69.99 $25.04 (36%)

Your Price: $44.95
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ColdPruf Classic 170 Silk Weight Merino Wool Crew for Men

SKU: CLDCCM

  • Merino wool
  • 5 ounce silk weight
  • Single layer jersey knit
  • Tagless, flat seams

Regular: $46.99 $5.00 (11%)

Starting at: $41.99
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Minus33 Merino Wool Mid Weight 1/4 Length Zip for Women

SKU: MINMWQZW

  • 100% 18.5 Micron Merino Wool
  • 230 g/m2 interlock knit construction
  • Flat lock seams

List: $75.99 $11.00 (14%)

Your Price: $64.99
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SmartWool NTS Micro 150 Pattern Crew for Men

SKU: SMTMPM

  • Form fitting Jersey knit
  • Crew with set-in sleeves
  • Shoulder panels
  • Flatlock seam construction

Your Price: $79.95
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List: $65.99 $9.50 (14%)

Your Price: $56.49
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Under Armour Coldgear Infrared Evo Cg Mock for Men

SKU: UNACIECM

  • Dual-layer fabric 
  • Thermo-conductive inner coating 
  • 4-Way Stretch fabrication 
  • Moisture transport system 
  • Quick-dry fabrication 

List: $54.99 $17.04 (31%)

Your Price: $37.95
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Minus33 Merino Wool MidWeight Crew Neck - Men's

Mossy Oak Infinity

SKU: MINMCMMO

  • Merino wool
  • Interlock knit construction
  • Flat lock seams
  • Machine wash, dry

List: $80.99 $12.00 (15%)

Your Price: $68.99
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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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Minus33 Chocorua Men's Mid-Weight Crew

SKU: MINMWCM

  • 100% 18.5 Micron Merino Wool
  • 230 g/m2 Interlock knit construction
  • Flat lock seams

List: $65.99 $9.50 (14%)

Your Price: $56.49
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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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Top Rated Gear

List: $89.99 $13.50 (15%)

Your Price: $76.49
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