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.

Under Armour ColdGear Infrared Evo Legging Womens

SKU: UNACIELW

  • Warm, quick drying
  • Anti-microbial
  • Moisture wicking
  • Flatlock seams

Your Price: $54.99
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Under Armour Coldgear Infrared Devo Crew for Men

SKU: UNACIDCM

  • Dual layer fabric
  • ColdGear infrared tech
  • 4 way stretch
  • Moisture transport

Regular: $69.99 $25.04 (36%)

Your Price: $44.95
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Under Armour ColdGear Infrared Evo Mock Womens

SKU: UNACIEMW

  • Warm, quick drying
  • Anti-microbial
  • Moisture wicking
  • 4-way stretch

Your Price: $54.99
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Under Armour UA Essential Solid Compression Shorts Men

SKU: UNAESCSM

  • Hydro armour technology
  • ISO chill cooling technology
  • Quick dry waistband
  • Armour block

Regular: $39.99 $15.04 (38%)

Your Price: $24.95
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Under Armour Coldgear Infrared Devo 1/4-Zip for Men

SKU: UNACIDZM

  • Dual layer fabric
  • ColdGear infrared tech
  • 4 way stretch
  • Moisture transport

Regular: $79.99 $30.04 (38%)

Your Price: $49.95
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Under Armour Base 2.0 1/4 Zip for Men

SKU: UNAB2ZM

  • Moisture wicking
  • Anti-odor technology
  • 4-way stretch
  • Fast drying

Regular: $41.95 $2.00 (5%)

Your Price: $39.95
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Under Armour Base 2.0 Crew for Men

SKU: UNAB2CM

  • Mid-weight protection
  • Soft, brushed interior
  • 4-way stretch fabrication
  • Moisture transport system

Regular: $37.95

Starting at: $36.95
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Under Armour ColdGear Infrared Evo Hoody Womens

SKU: UNACIEHW

  • Warm, quick drying
  • Anti-microbial
  • Moisture wicking
  • 4-way stretch

Regular: $64.99 $25.04 (39%)

Your Price: $39.95
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Under Armour Fly-By Compression Capri Womens

SKU: UNAFBCCW

  • Temperature regulation
  • Moisture wicking
  • 4-way stretch
  • Breathable

Regular: $49.99 $15.04 (30%)

Your Price: $34.95
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Under Armour Amplify Thermal Crew for Men

SKU: UNAATM

  • Waffle textured
  • 4 way stretch
  • Moisture transport
  • Anti odor technology

Your Price: $39.99
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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%)

Your Price: $13.95
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Under Armour Base 2.0 Legging for Women

SKU: UNAB2LW

  • Moisture wicking
  • Quick drying
  • 4-way stretch construction
  • Anti-microbial

Your Price: $54.99
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Under Armour Coldgear Infrared Evo Cg Mock for Men

SKU: UNACIECM

  • Dual-layer fabric
  • Thermo-conductive inner coating
  • 4-Way Stretch fabrication
  • Moisture transport system
  • Quick-dry fabrication

List: $54.99 $17.04 (31%)

Your Price: $37.95
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Sale

Under Armour ColdGear Evo Legging Boys

SKU: UNACELB

  • Moisture wicking
  • Quick drying
  • 4-way stretch construction
  • Anti-microbial

Regular: $27.95 $2.00 (7%)

Your Price: $25.95
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In Stock + Wish list

List: $54.95 $17.00 (31%)

Your Price: $37.95
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In Stock + Wish list

List: $54.99 $17.04 (31%)

Your Price: $37.95
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In Stock + Wish list

Under Armour Base 2.0 Crew for Women

SKU: UNAB2CW

  • Moisture wicking
  • Quick drying
  • 4-way stretch construction
  • Anti-microbial

List: $54.95 $17.00 (31%)

Your Price: $37.95
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In Stock + Wish list