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.

Polarmax Powerskins by XGO Short for Men

SKU: PMXPSSM

  • Anti microbial
  • Won't shrink, pick, fade
  • Durable, breathable
  • Four way stretch

Your Price: $21.95
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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 Powerskins by XGO Tight for Men

SKU: PMXPSTM

  • Anti microbial
  • Won't shrink, pick, fade
  • Durable, breathable
  • Four way stretch

Your Price: $35.95
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Sale

ColdPruf Basic 90 Pants for Men

SKU: CLDBPM

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

Regular: $11.99 $1.00 (8%)

Starting at: $10.99
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Sale

Polarmax 4-Way Stretch Tights for Men

SKU: PMXSSTM

  • 4-Way Stretch XG Fabric
  • Quick Drying
  • Scent Prevent Anti-Microbial
  • Comfortable Flat Seams
  • Athletic Fit

Regular: $32.95 $5.00 (15%)

Starting at: $27.95
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Sale

ColdPruf Basic 50 Pants for Women

SKU: CLDBPW

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

Regular: $11.99 $2.00 (17%)

Starting at: $9.99
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Sale

ColdPruf Enthusiast 97 Pants for Men

SKU: CLDEPM

  • 100 percent polypropylene
  • Single layer engineering
  • Lightweight, comfortable fit
  • Flat seams

Regular: $13.99 $1.00 (7%)

Starting at: $12.99
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Marmot Catalyst 3/4 Rev. Tight for Women

SKU: MRMC3RTW

  • Midweight, breathable
  • UPF 50
  • Quick drying and wicking
  • Reversible

Your Price: $65.00
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Polarmax 4-Way Stretch Tights for Women

SKU: PMXSSTW

  • 4-Way stretch XG fabric
  • Quick drying
  • Scent prevent anti-microbial
  • Comfortable flat seams
  • Athletic fit

Your Price: $32.95
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ColdPruf Premium Performance 49 Pants for Women

SKU: CLDPPPW

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

Regular: $20.99 $6.00 (29%)

Starting at: $14.99
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Sale

ColdPruf Authentic 93 Pants for Men

SKU: CLDAPM

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

Regular: $20.99 $2.00 (10%)

Starting at: $18.99
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ColdPruf Expedition 85 Pants for Men

SKU: CLDEXPM

  • 100 percent polyester fleece
  • Moisture management
  • Single-layer engineering
  • Tagless

Regular: $15.99 $2.00 (13%)

Starting at: $13.99
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Icebreaker Midweight Apex Leggings for Men

SKU: ICBMALM

  • Odor resistant
  • Breathable
  • Gusseted for comfort
  • Merino wool
  • Midweight

Your Price: $99.95
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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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Sale

Under Armour Original Boxerjock Brief 9"

SKU: UNAOB9M

  • Lightweight fabric
  • 4 way stretch
  • Moisture wicking
  • Anti odor technology

Your Price: $13.95
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ColdPruf Classic 170 Silk Weight Merino Wool Pants for Men

SKU: CLDCPM

  • Merino wool
  • 5 ounce silk weight
  • Single layer jersey knit
  • Tagless, flat seams

Regular: $46.99 $5.00 (11%)

Starting at: $41.99
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Top Rated Gear

ColdPruf Platinum Bottom for Men

5.0 (1 review)
Ratings Distribution
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SKU: CLDPBM

  • CPT fiber technology
  • Two-layer engineering
  • Air-trap design
  • 100% CPT polyester inside
  • 70% polyester, 30% merino wool outside

List: $25.95 $5.96 (23%)

Your Price: $19.99
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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

Under Armour The Original 6 in. Boxerjock Boxer Briefs

SKU: UNAOBB

  • Lightweight, HeatGear fabric
  • Articulated mesh fly panel
  • 4-Way Stretch fabrication 
  • Signature Moisture Transport System
  • Anti-odor technology

List: $20.00 $6.05 (30%)

Starting at: $13.95
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