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

Mammut Long Pants Warm-Quality Thermal Underwear for Men

SKU: MMTLPWQM

  • Fast drying
  • Antimicrobial feature
  • Material: 83% Polyester, 17% Wool
  • Body zone fabric design

Regular: $80.00 $45.05 (56%)

Your Price: $34.95
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In Stock + Wish list

Sale

ColdPruf Authentic 93 Pants for Men

SKU: CLDAPM

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

Regular: $20.99 $3.00 (14%)

Your Price: $17.99
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In Stock + Wish list

Sale

The North Face Light Boot Top Bottom for Men

SKU: NFCLBTBM2XBK

  • Elastic logo waist
  • Flat-locked seams
  • Fly opening
  • Three-quarter length
  • Moisture-wicking polyester knit fabric

Regular: $45.00 $25.05 (56%)

Your Price: $19.95

In Stock + Wish list

Sale

Polarmax Micro H2 Base Layer V-Neck for Women

SKU: PMXMHVW

  • Base layer
  • Polyester fabric
  • Stretch ability
  • Machine washable
  • Contrast Stitching

Regular: $39.95 $20.00 (50%)

Your Price: $19.95
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In Stock + Wish list

Sale

ColdPruf Classic 170 Silk Weight Merino Wool Pants for Women

SKU: CLDCPW

  • Single layer jersey knit
  • Silk weight
  • Merino wool
  • Tagless, flat seams

Regular: $45.99 $11.00 (24%)

Starting at: $34.99
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In Stock + Wish list

Sale

Ibex Woolies 3 Hoody for Women

SKU: IBX3HW

  • Breathable
  • Anti-odor
  • Thumb holes in sleeves
  • Flatlock seams

Regular: $108.95 $9.00 (8%)

Your Price: $99.95
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In Stock + Wish list

Sale

Under Armour Base 2.0 1/4 Zip for Men

SKU: UNAB2ZM

  • Moisture wicking
  • Anti-odor technology
  • 4-way stretch
  • Fast drying

Regular: $41.95 $2.00 (5%)

Your Price: $39.95
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In Stock + Wish list

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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In Stock + Wish list

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 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

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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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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In Stock + Wish list

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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In Stock + Wish list

Sale

ColdPruf Premium Performance 89 Pants for Men

SKU: CLDPPPM

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

Regular: $20.99 $5.00 (24%)

Your Price: $15.99
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In Stock + Wish list

Sale

Polarmax Montana Wool 2.0 Zip Mock Mens

SKU: PMXMWZ2M

  • Mid-weight
  • Moisture wicking
  • Breathable, quick drying
  • Anti-microbial

Regular: $74.95 $12.00 (16%)

Your Price: $62.95
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In Stock + Wish list

Sale

Regular: $49.00 $32.05 (65%)

Your Price: $16.95
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Low Stock + Wish list

Sale

Regular: $30.00 $13.05 (44%)

Your Price: $16.95
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Out of Stock + Wish list