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.

SmartWool NTS Midweight 250 Crew for Men

SKU: SMTMIM

  • Midweight baselayer
  • Set-in sleeves
  • Flatlock seams
  • Form Fit

Your Price: $94.95
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SmartWool NTS Midweight 250 Crew for Women

SKU: SMTMIW

  • Midweight baselayer
  • Body enhancing fit
  • Flatlock seams
  • Moisture wicking

Your Price: $95.00
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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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ColdPruf Authentic 93 Crew for Men

SKU: CLDACM

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

Regular: $20.99 $2.00 (10%)

Starting at: $18.99
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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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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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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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ColdPruf Basic 60S Top and Bottom Base Layer Set for Kids

SKU: CLDBK

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

Your Price: $22.99
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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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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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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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ColdPruf Authentic Wool Plus 92 Crew for Men

SKU: CLDAWCM

  • Ring spun cotton, Merino wool, nylon
  • Combed, ring spun cotton
  • Inner layer body heat
  • Rib knit cuffs

Regular: $22.99 $2.00 (9%)

Starting at: $20.99
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Regular: $60.00 $25.05 (42%)

Your Price: $34.95
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SmartWool NTS Micro 150 Crew for Men

SKU: SMTCRM

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

Your Price: $74.95
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Top Rated Gear

List: $75.99 $11.00 (14%)

Your Price: $64.99
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Mountain Hardwear Ediza Short Sleeve Shirt for Women

5.0
(1 review)
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SKU: MHWESSW

  • 25 UPF sun protection
  • Antimicrobial finish
  • 25 in. central back length
  • Flat-lock seam construction
  • Panels over shoulders

Regular: $38.00 $23.05 (61%)

Your Price: $14.95
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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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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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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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