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.

Terramar Thermasilk Filament Jersey Silk Crew Shirt for Men

SKU: TRMMSC

  • 100% Supersoft Pure Filament Jersey Silk
  • ec2 Qwik-Dri Thermoregulation Comfort Technology
  • Lightweight
  • Durable
  • Fabric Weight: 75 grams (2.6 oz.)

List: $38.95 $3.00 (8%)

Starting at: $35.95
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Terramar Thermasilk Filament Silk Pant for Men

5.0
(1 review)
Ratings Distribution
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    (1)
  • 4 Stars
     
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  • 3 Stars
     
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SKU: TRMMSP

  • ec2 Qwik-Dri Thermoregulation Comfort Technology
  • 100% Silk
  • Non-bulky
  • Anti-Microbial
  • Luxurious, Soft and Comfortable

List: $38.95 $3.00 (8%)

Starting at: $35.95
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Terramar Men's Thermolator II Crew with Mesh Shirt

4.5
(4 reviews)
Ratings Distribution
  • 5 Stars
     
    (2)
  • 4 Stars
     
    (2)
  • 3 Stars
     
    (0)
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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: $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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Ibex Woolies 1 Crew for Men

SKU: IBXW1M

  • Breathable
  • Anti-odor
  • Raglan sleeves
  • Flatlock seams

Regular: $80.00 $30.05 (38%)

Your Price: $49.95
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Terramar Men's Thermolator II Mock

SKU: TRMMT2M

  • Brushed polyester
  • 4 way stretch
  • Climasense fabric
  • Mesh ventilation panels

List: $25.00 $6.05 (24%)

Starting at: $18.95
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Ibex Woolies 1 Crew for Women

SKU: IBXW1W

  • Breathable
  • Anti-odor
  • Raglan sleeves
  • Flatlock seams

Regular: $80.00 $30.05 (38%)

Your Price: $49.95
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Top Rated Gear

Terramar Men's Thermolator II Pants

5.0
(1 review)
Ratings Distribution
  • 5 Stars
     
    (1)
  • 4 Stars
     
    (0)
  • 3 Stars
     
    (0)
  • 2 Stars
     
    (0)
  • 1 Stars
     
    (0)

SKU: TRMMT2P

  • 86% Micro-Polyester and 14% Spandex
  • ec2 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 Thermawool CS 4.0 Crew

SKU: TRMMTW4C

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

Your Price: $38.95
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Your Price: $41.95
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Mountain Hardwear Justo Trek T-Shirt Short Sleeve for Men

SKU: MHWJTSSMN

  • Antimicrobial finish
  • 29 in. center back length
  • Tipa Warp Knit, Weighs 4.4 oz.
  • Q EVAP on back panel
  • UPF rating, Fast drying, UPF 50

Regular: $50.00 $27.05 (54%)

Your Price: $22.95
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The North Face Light Longsleeve Zip Neck for Women

SKU: NFCLLZWXSBK

  • Material: polyester, polyolefin
  • Half-length zipper
  • Flat-locked seams
  • FlashDry microparticles
  • Weight: 3.7 oz.

Regular: $50.00 $25.05 (50%)

Your Price: $24.95

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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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Ibex Woolies 1 Henley for Women

SKU: IBX1HW

  • Breathable
  • Anti-odor
  • Set-in sleeves
  • Flatlock seams

Regular: $85.00 $30.05 (35%)

Your Price: $54.95
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The North Face Light Tight for Men - Previous Season

SKU: NFCLTM

  • Fly opening
  • Elastic logo waist
  • Flat-locked seams
  • FlashDry thermal technology
  • Material: polyester, polyolefin

Regular: $45.00 $18.05 (40%)

Your Price: $26.95
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ColdPruf Authentic 93 Pants for Men

SKU: CLDAPM

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

Regular: $20.99 $2.00 (10%)

Starting at: $18.99
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Ibex Woolies 2 Zip T-Neck for Men

SKU: IBX2ZM

  • Breathable
  • Anti-odor
  • Set-in sleeves
  • Flatlock seams

Regular: $80.95 $6.00 (7%)

Starting at: $74.95
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Ibex Woolies 2 Crew for Women - Flora

SKU: IBXW2W

  • Breathable
  • Anti-odor
  • Flatlock seams
  • Set-in sleeves

Regular: $110.00 $40.05 (36%)

Your Price: $69.95
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Mammut Go Warm Longsleeve Zip Baselayer for Men

SKU: MMTGWZM

  • Contoured cut
  • Extended back
  • Zip with zip-store
  • 100% polyester microfiber
  • Merino wool and polyester mix

Regular: $54.95 $10.00 (18%)

Starting at: $44.95
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