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 - 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

Sale

The North Face Warm Longsleeve Zip Neck for Women

SKU: NFCWLZW

  • Next-to-skin fit
  • Mock neck
  • Half-zip front
  • Flat-locked seams
  • Logo tag

Regular: $60.00 $30.05 (50%)

Your Price: $29.95
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Sale

ColdPruf Performance 98 Crew for Men

SKU: CLDPRCM

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

Regular: $18.99 $2.00 (11%)

Your Price: $16.99
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SmartWool NTS Microweight 150 Pattern Crew Top for Men

SKU: SMTMWPCM

  • Jersey Knit Construction
  • Flatlock Seam Design
  • Form Fit
  • Stripe Tape Binding

List: $80.00 $20.05 (25%)

Your Price: $59.95
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List: $105.00 $25.01 (24%)

Your Price: $79.99
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Polar Max Performance Tech Silk Crew for Men

SKU: PMXPSCM

  • Lightweight mesh
  • Anti microbial
  • Wicks moisture
  • Stretchable, flexible

Your Price: $21.95
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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

ColdPruf Performance 58 Crew for Women

SKU: CLDPRCW

  • 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

SmartWool NTS Microweight 150 Pattern Crew Top for Women

SKU: SMTMWPCW

  • Soft, Non-Irritating Material
  • Shaped Bottom Hem
  • Lightweight
  • UPF Rating Of 30

Regular: $69.99 $25.00 (36%)

Your Price: $44.99
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Sale

Ibex Woolies 220 Zip T for Women

SKU: IBXW2ZTW

  • Rib knit merino
  • Form fit
  • Flatlock seams
  • Set in sleeves

Regular: $105.00 $55.05 (52%)

Your Price: $49.95
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Sale

Mountain Hardwear Tephra Trek T-Shirt Short Sleeve for Women

SKU: MHWTTSTW

  • Wick Q EVAP
  • Fast drying
  • Stretch fabric
  • Seams rotated away from pressure points
  • Antimicrobial finish

Regular: $55.00 $32.05 (58%)

Your Price: $22.95
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Sale

Polarmax Powerskins By XGO Long Sleeve Crew Shirt for Men

SKU: PMXPSLCM

  • Anti microbial
  • Won't shrink, pick, fade
  • Durable, breathable
  • Four way stretch

Regular: $27.95 $1.00 (4%)

Your Price: $26.95
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Sale

Regular: $85.00 $40.05 (47%)

Starting at: $44.95
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Terramar Women's Thermawool CS 4.0 Half-Zip

SKU: TRMWTW4H

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

Your Price: $35.95
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Terramar Kashmir HG V-Neck 1.0 for Women

SKU: TRMKHV1W

  • HG Climasense heat generating technology
  • Soft, breathable, and fast-drying
  • Antimicrobial finish
  • Brushed surface
  • UPF rating 25+

Your Price: $16.95
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Sale

Mountain Hardwear Wicked Lite T-Shirt Short Sleeve for Women

SKU: MHWWLSWN

  • Wicking, fast drying fabric
  • Antimicrobial finish controls odor
  • Flat-lock seam construction eliminates chafe
  • Reflective trim for visibility
  • MHW classic wicking tee

Regular: $35.00 $19.05 (54%)

Your Price: $15.95
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Polarmax Double Base Layer Crew for Women

4.0
(2 reviews)
Ratings Distribution
  • 5 Stars
     
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  • 4 Stars
     
    (2)
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  • 1 Stars
     
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SKU: PMXDBLCW

  • Stretches
  • Quick Drying
  • Scent Prevent Anti-Microbial
  • Relaxed Fit Flat Seams
  • Feels like cotton

Your Price: $20.95
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