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.

List: $39.99 $12.04 (30%)

Your Price: $27.95
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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%)

Starting at: $13.95
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List: $49.99 $15.04 (30%)

Your Price: $34.95
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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: $48.95 $4.00 (8%)

Starting at: $44.95
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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: $59.95 $10.00 (17%)

Your Price: $49.95
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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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Under Armour Amplify Thermal Crew for Men

SKU: UNAATM

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

List: $39.99 $12.04 (30%)

Your Price: $27.95
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List: $54.99 $16.04 (29%)

Your Price: $38.95
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List: $64.99 $19.04 (29%)

Your Price: $45.95
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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

List: $54.99 $16.04 (29%)

Starting at: $38.95
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List: $54.99 $16.04 (29%)

Your Price: $38.95
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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: $27.98 $3.03 (11%)

Your Price: $24.95
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List: $59.99 $18.04 (30%)

Your Price: $41.95
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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

List: $54.99 $16.04 (29%)

Starting at: $38.95
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In Stock + Wish list

List: $54.99 $16.04 (29%)

Your Price: $38.95
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In Stock + Wish list

List: $54.99 $16.04 (29%)

Your Price: $38.95
Select Options

In Stock + Wish list