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

Regular: $60.00 $25.05 (42%)

Your Price: $34.95
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Sale

Mammut Go Warm Longsleeve Zip Baselayer for Men

SKU: MMTGWZM

  • Contoured cut
  • Extended back
  • Zip with zip-store
  • 100% polyester microfiber
  • Merino wool and polyester mix

Regular: $54.95 $10.00 (18%)

Starting at: $44.95
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Sale

Marmot Windridge Short Sleeve Shirt for Men

SKU: MRMWSSM

  • Ultraviolet protection factor (UPF) 50
  • Knit, polyester fabric
  • Tag-free neckline
  • Flat-locked seams
  • Mesh panels

Regular: $30.00 $10.05 (34%)

Starting at: $19.95
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Ibex Woolies 2 Crew Stripe for Men

SKU: IBXCSM

  • Breathable
  • Anti-odor
  • Set-in sleeves
  • Flatlock seams

List: $110.00 $33.05 (30%)

Your Price: $76.95
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SmartWool NTS Midweight 250 Color Block Crew for Men

SKU: SMTCBM

  • Set-in sleeves
  • Flatlock seams
  • Form fit
  • Interlock knit

Your Price: $105.00
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Sale

Ibex Woolies 2 Zip T-Neck for Men

SKU: IBX2ZM

  • Breathable
  • Anti-odor
  • Set-in sleeves
  • Flatlock seams

Regular: $80.95 $6.00 (7%)

Starting at: $74.95
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Sale

ColdPruf Authentic 93 Crew for Men

SKU: CLDACM

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

Regular: $20.99 $4.00 (19%)

Starting at: $16.99
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Top Rated Gear

List: $75.99 $11.00 (14%)

Your Price: $64.99
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Sale

Polarmax Core-4 Tech Fleece Zip Mock for Women

SKU: PMXC4TMW

  • 4-way power stretch fabric
  • Tech face
  • Brushed fleece interior
  • No shrink
  • Athletic Fit

Regular: $53.95 $20.00 (37%)

Starting at: $33.95
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Minus33 Ticonderoga Men's Lightweight Crew

SKU: MINLCM

  • 100% 17.5-Micron-Merino wool
  • 170 g/m2 Jersey-knit construction
  • Flat-lock seams
  • Machine-washable
  • Sizes available: X-small to XXX-large

List: $59.99 $9.00 (15%)

Your Price: $50.99
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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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NRS Women's H2Core Silkweight Short-Sleeve Shirt

Azure Blue Heather

SKU: NRSH2WSSS

Your Price: $34.95
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Minus33 Kinsman MidWeight Turtleneck for Men

SKU: MINMTM

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

List: $75.99 $11.00 (14%)

Your Price: $64.99
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SmartWool Midweight Crew Top for Women

SKU: SMTMDCW

  • Upf 50+ protection
  • Back Body Seam Wraps
  • Shoulder Panels
  • Flatlock Seam Construction
  • Heat Transfer Logo

List: $95.00

Your Price: $94.95
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SmartWool NTS Midweight 250 Zip T for Women

SKU: SMTZTW

  • Standalone or under-layer
  • 8 inch center front zip
  • Back seam wraps to front
  • Breathable, odor resistant

Your Price: $99.99
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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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SmartWool Midweight Pattern Crew Top for Women

SKU: SMTMPCW

  • 100% Merino Wool
  • Form Fitting
  • Jacquard Knit
  • Back Body Seam
  • Shoulder Panels

List: $105.00

Your Price: $104.95
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Sale

Polarmax Montana Wool 2.0 Crew Mens

SKU: PMXMWC2M

  • Stretchy
  • Moisture wicking
  • Breathable, quick drying
  • Anti-microbial

Regular: $69.95 $13.00 (19%)

Starting at: $56.95
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