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 Women's Thermawool 100% Merino Wool Pants

3.0 (3 reviews)
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SKU: TRMWTWP

  • 100% Mercerized Super Soft Merino Wool Jersey
  • Machine-Washable
  • Itch-free
  • Breathable
  • Flatlock Seam Construction

Your Price: $35.95
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Regular: $11.99 $2.00 (17%)

Starting at: $9.99
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Terramar Women's Thermawool 100% Merino Wool V-Neck Shirt

SKU: TRMWTWV

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

Your Price: $35.95
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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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Mountain Hardwear Wicked Lite T-Shirt Short Sleeve for Women

SKU: MHWWLSSW

  • Fast drying fabric
  • Natural Chitosan antimicrobial finish
  • Flat-lock seam construction
  • Center back length: 24.5 in.

Regular: $35.00 $20.05 (57%)

Your Price: $14.95
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Marmot Trail Breeze 3/4 Tight for Women X-Small Dark Steel

SKU: MRMB3TW

  • Polygiene technology finish
  • Ultraviolet protection factor 30
  • Mesh paneling
  • Compression fit
  • Coolmax interior gusset liner

Regular: $65.00 $40.05 (62%)

Your Price: $24.95
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The North Face Warm Tight for Women

SKU: NFCWTWN

  • Elastic logo waist
  • Flat locked seams
  • Ankle length
  • Hollow core fibers
  • Lightweight, wicking

Regular: $50.00 $25.05 (50%)

Your Price: $24.95
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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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ColdPruf Premium Performance 49 Crew for Women

SKU: CLDPPCW

  • Single layer engineering
  • Polyester, spandex
  • Max dryness, antimicrobial
  • Trim fit

Regular: $20.99 $6.00 (29%)

Starting at: $14.99
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Terramar Cloud Nine CS Scoop 2.0 Shirt for Women

SKU: TRMCNS2W

  • Stretch jersey
  • Moisture wicking
  • Fast drying
  • Breathable

Your Price: $17.95
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Marmot ThermalClime Pro LS Crew for Women

SKU: MRMTPLSW

  • Quick drying
  • Moisture wicking
  • Stretch elastane
  • Flat lock seams

Regular: $50.00 $18.05 (36%)

Your Price: $31.95
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ColdPruf Basic 50 Pants for Women

SKU: CLDBPW

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

Regular: $11.99 $2.00 (17%)

Starting at: $9.99
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Terramar Cloud Nine CS Tight 2.0 for Women

SKU: TRMCNT2W

  • Thermolator II fabric
  • EC2 Qwik-Dri technology
  • Anti microbial
  • UPF 25 sun protection

Your Price: $17.95
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Patagonia Versatiliti Top for Women

SKU: PTGVTW

  • Plaited organic cotton and Tencel lyocell
  • Fabric is soft and comfortable
  • Short-sleeve, V-neck styling
  • Fine gathers at front yoke
  • Very versatile

Regular: $45.00 $26.05 (58%)

Your Price: $18.95
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Adidas Ultimate Tight for Women

SKU: ADSUTW

  • Wide elastic waistband
  • Climalite fabric
  • Fitted fit
  • Flatlock seams

Your Price: $43.00
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ColdPruf Premium Performance 49 Pants for Women

SKU: CLDPPPW

  • Single layer engineering
  • Polyester, spandex
  • Max dryness, antimicrobial
  • Trim fit

Regular: $20.99 $6.00 (29%)

Starting at: $14.99
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SmartWool NTS Micro 150 Pattern Crew for Women

SKU: SMTMPW

  • Form fitting Jersey knit
  • Stretch stitching
  • Side seams wrap to front
  • Tagless comfort

List: $79.95 $19.96 (25%)

Your Price: $59.99
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Terramar Ecolator CS Fleece Half-Zip 3.0 for Women

SKU: TRMECH3W

  • Comfort in all seasons
  • Antimicrobial
  • Heavyweight
  • Breathable

Your Price: $28.95
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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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Minus33 Osceola Midweight 3/4 Bottoms for Women

SKU: MINMQW

  • Merino wool
  • Interlock construction
  • Flat lock seams
  • Machine washable

List: $59.99 $9.00 (15%)

Your Price: $50.99
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