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 Go Dry Longsleeve Zip Baselayer Womens

SKU: MMTGDZW

  • All season baselayer
  • Highly technical
  • Stretchy mobility
  • Quick-drying

Regular: $70.00 $27.05 (39%)

Your Price: $42.95
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Minus33 Moriah Women's Lightweight Crew

SKU: MINLCW

  • Jersey knit construction
  • 100% Merino Wool
  • Lightweight base layer
  • Flat lock seams
  • Machine dry

List: $59.99 $9.00 (15%)

Your Price: $50.99
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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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Marmot ThermalClime Sport SS Crew Shirt for Men

SKU: MRMTSSCM

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

Your Price: $35.00
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Sale

Mammut Go Warm Longsleeve Baselayer for Women

SKU: MMTGWLW

  • Contoured cut
  • Extended back
  • 100% Polyester microfiber
  • Merino wool and polyester mix
  • Antimicrobial feature

Regular: $75.00 $40.05 (53%)

Starting at: $34.95
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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

Marmot ThermalClime Sport SS Crew for Women

SKU: MRMTSSCW

  • Quick drying
  • Moisture wicking
  • Water resistant elastane
  • Flat lock seams

Regular: $35.00 $12.05 (34%)

Your Price: $22.95
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Minus33 Allagash Lightweight 1/4 Length Zip for Men

SKU: MINLZM

  • Merino wool
  • Jersey knit construction
  • Flat lock seams
  • Machine washable

List: $64.99 $9.50 (15%)

Your Price: $55.49
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SmartWool NTS Micro 150 Pattern Crew for Men

SKU: SMTMPM

  • Form fitting Jersey knit
  • Crew with set-in sleeves
  • Shoulder panels
  • Flatlock seam construction

Your Price: $79.95
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Ibex Woolies 3 Hoody for Men

SKU: IBX3HM

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

List: $155.00 $46.05 (30%)

Your Price: $108.95
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Top Rated Gear

List: $75.99 $11.00 (14%)

Your Price: $64.99
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Sale

Mammut Go Warm Longsleeve Shirt Baselayer for Men

SKU: MMTGWSM

  • Extended back
  • Contoured cut
  • Body Mapping technology
  • Polyester microfiber
  • Antimicrobial feature

Regular: $49.95 $5.00 (10%)

Starting at: $44.95
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Sale

Arc'teryx RHO LT Zip Neck for Women

SKU: ARCLZNW

  • Moisture-wicking
  • Warm when wet
  • Resists odors
  • Flatlock seams

Regular: $119.00 $39.05 (33%)

Starting at: $79.95
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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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SmartWool NTS Micro 150 Pattern Crew for Women

SKU: SMTMPW

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

Your Price: $79.95
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Minus33 Merino Wool Mid Weight 1/4 Length Zip for Women

SKU: MINMWQZW

  • 100% 18.5 Micron Merino Wool
  • 230 g/m2 interlock knit construction
  • Flat lock seams

List: $75.99 $11.00 (14%)

Your Price: $64.99
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Sale

Regular: $60.00 $25.05 (42%)

Your Price: $34.95
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Sale

Ibex Woolies 3 Pullover for Men

SKU: IBX3PM

  • Breathable
  • Anti-odor
  • Raglan sleeves
  • Brushed exterior

Regular: $115.00 $40.05 (35%)

Your Price: $74.95
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Arc'Teryx Atom LT Vest Womens

SKU: ARCALVW

  • Moisture-resistant
  • Breathable, lightweight
  • Coreloft insulation
  • Wind resistant

Your Price: $169.00
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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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