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 Crew Neck for Women

SKU: NFCWLCWXLBK

  • Next-to-skin fit
  • Crew neck
  • Flat-locked seams
  • Feminine fit

Regular: $50.00 $23.05 (46%)

Your Price: $26.95

In Stock + Wish list

Minus33 Lightweight 1/4 Length Zip for Women

SKU: MINTCW

  • 100 percent merino wool
  • Moisture wicking
  • Odor repellent
  • Flatlock seams

List: $64.99 $9.50 (15%)

Your Price: $55.49
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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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Ibex Woolies 220 Crew Stripe for Women

SKU: IBXW2CSW

  • Rib knit merino
  • Form fit
  • Flatlock seams
  • Raglan sleeves

Your Price: $110.00
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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

Terramar Women's Thermawool 100% Merino Wool V-Neck Shirt

SKU: TRMWTWV

  • Superfine Merino Wool
  • Soft
  • Breathable
  • Moisture Management
  • Anti-microbial

Regular: $35.95 $8.00 (22%)

Your Price: $27.95
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Sale

Regular: $27.95 $11.00 (39%)

Starting at: $16.95
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Sale

The North Face Light Longsleeve Crew Neck for Women

SKU: NFCLLCWN

  • Moisture wicking
  • Next to skin fit
  • Crew neck
  • Flat locked seams

Regular: $29.95 $7.00 (23%)

Your Price: $22.95
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Sale

Regular: $80.00 $30.05 (38%)

Your Price: $49.95
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Terramar Women's Thermawool CS 4.0 Crew

SKU: TRMWTW4C

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

Your Price: $26.95
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Icebreaker Oasis Long Sleeve Lightweight Crewe for Women

SKU: ICBOLLCW

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

Your Price: $89.99
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Icebreaker Tech Top Long Sleeve Midweight Crewe for Women

SKU: ICBTLMCW

  • 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 Women

SKU: PMXSSZMW

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

Your Price: $34.95
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ColdPruf Platinum Crew for Women

SKU: CLDPCW

  • Polyester
  • Flat Seams
  • Ring Spun Yarns
  • Thermachoice System

Your Price: $19.99
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Sale

Adidas Terrex Icesky 1/2 Zip Long Sleeve for Women

SKU: ADSTIZLW

  • Climawarm Technology
  • FORMOTION Technology
  • 1/2-Zip 
  • Fitted Collar

Regular: $65.00 $33.05 (51%)

Your Price: $31.95
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SmartWool Midweight Zip T for Women

SKU: SMTMZTW

  • 100% Merino Wool
  • Form fit
  • 12 in. center front zip
  • Back Body Seam
  • Flatlock seam construction eliminates chafing

List: $100.00 $25.05 (25%)

Your Price: $74.95
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List: $54.99 $16.04 (29%)

Your Price: $38.95
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Sale

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

In Stock + Wish list