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.

Minus33 Merino Wool Lightweight Crew for Men

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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Minus33 Merino Wool Lightweight Crew Neck for Women

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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List: $54.99 $16.04 (29%)

Your Price: $38.95
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List: $54.99 $16.04 (29%)

Your Price: $38.95
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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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List: $54.99 $16.04 (29%)

Starting at: $38.95
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Marmot ThermalClime Pro LS 1/2-Zip for Men

SKU: MRMTP2ZM

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

Your Price: $60.00
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Minus33 Merino Wool Lightweight Bottoms for Men

SKU: MINLBM

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

List: $59.99 $9.00 (15%)

Your Price: $50.99
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Icebreaker Everyday Leggings for Men (w/Fly)

SKU: ICBEVLM

  • Gusset
  • Material: Merino wool
  • UPF rating: 50+
  • Machine-washable
  • Flat-lock seams

Your Price: $59.99
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List: $54.99 $16.04 (29%)

Your Price: $38.95
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Minus33 Tecumseh Midweight 3/4 Bottoms for Men

SKU: MINMQM

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

List: $59.99 $9.00 (15%)

Your Price: $50.99
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Sale

Regular: $85.99 $26.00 (30%)

Your Price: $59.99
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Sale

Regular: $80.00 $27.05 (34%)

Starting at: $52.95
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Minus33 Merino Wool Mid Weight Bottoms for Men

SKU: MINMWBM

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

List: $65.99 $9.50 (14%)

Your Price: $56.49
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Minus33 Merino Wool Lightweight Bottoms for Women

SKU: MINLBW

  • 100% 17.5-micron Merino wool
  • 170 g/m2 jersey-knit construction
  • Flat-lock seams
  • Weight (size L): 6.1 oz. 
  • Machine-wash compatibility

List: $59.99 $9.00 (15%)

Your Price: $50.99
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Icebreaker Everyday Leggings for Women

SKU: ICBEVLW

  • Gusset
  • Flat-lock stitching
  • Icebreaker branded waistband
  • Icebreaker pip label
  • Material: Merino wool

Your Price: $59.99
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List: $54.99 $16.04 (29%)

Your Price: $38.95
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List: $59.99 $18.04 (30%)

Your Price: $41.95
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SmartWool NTS Microweight 150 Pattern Crew Top for Men

SKU: SMTMWPCM

  • Jersey Knit Construction
  • Flatlock Seam Design
  • Form Fit
  • Stripe Tape Binding

List: $80.00 $20.05 (25%)

Your Price: $59.95
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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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