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

Outdoor Research Frescoe Henley for Women

SKU: ORSFRHW

  • Dri-release E.C.O. fabric
  • Lightweight and Button front
  • Built-in FreshGuard odor neutralization
  • Button front

Regular: $48.00 $28.05 (58%)

Your Price: $19.95
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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

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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Sale

The North Face Light Longsleeve Zip Neck for Men

SKU: NFCLLZM2XBK

  • Mock neck design
  • Half-length zipper
  • Flat-locked seams
  • Material: polyester, polyolefin
  • FlashDry microparticles

Regular: $50.00 $25.05 (50%)

Your Price: $24.95

In Stock + Wish list

Sale

Regular: $49.00 $30.05 (61%)

Your Price: $18.95
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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

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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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

Sale

Mountain Hardwear Super Power Arm Warmer for Men - Black

SKU: MHWSPAWN

  • Body: Super Power Brushed jersey
  • Stretch fabric
  • Tonal reflective print
  • Wicking, fast drying
  • Flat-lock seam construction

Regular: $30.00 $16.05 (54%)

Your Price: $13.95
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Sale

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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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

The North Face Light Longsleeve Crew Neck for Women - Previous Season

SKU: NFCLLCW

  • Material: polyester, polyolefin
  • FlashDry technology 
  • Flat-locked seams
  • Weight: 3.35 oz.
  • Center back length: 25.5 in.

Regular: $45.00 $22.05 (49%)

Your Price: $22.95
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Sale

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%)

Your Price: $41.99
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Sale

SmartWool Midweight Pattern Crew Top for Men

SKU: SMTMPCM

  • 100% Merino Wool
  • Form Fitted
  • Interlock Knit 
  • Shoulder Panels
  • Flatlock Seams

Regular: $90.99 $25.00 (27%)

Your Price: $65.99
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Sale

Columbia Base Layer Midweight Mock Neck Long Sleeve for Men

SKU: COLBMMT

  • 85% polyester/15% elastane sweet rev.
  • Antimicrobial
  • Omni-Wick inserts
  • Omni-heat thermal reflective lining
  • Performance fit

Regular: $55.00 $30.05 (55%)

Your Price: $24.95
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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

The North Face Warm Longsleeve Crew Neck for Men - Previous Season

SKU: NFCWLCM

  • Crew neck
  • Length from Center Back: 28.5 in.
  • Long sleeves
  • FlashDry technology
  • Partial stretch fabrication

Regular: $50.00 $25.05 (50%)

Your Price: $24.95
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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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Sale

The North Face Light Longsleeve Crew Neck for Men

SKU: NFCLLCM

  • Crew neck
  • Flatlocked seams
  • Lifetime warranty 
  • Moisture management
  • Stretch fabric

Regular: $45.00 $22.05 (49%)

Your Price: $22.95
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Sale

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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In Stock + Wish list