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.

Terramar Men's Thermawool CS 4.0 Crew

SKU: TRMMTW4C

  • Climasense fabric
  • Advanced odor control
  • Wicking, fast drying
  • Retains heat, breathable

Your Price: $26.95
Select Options

In Stock + Wish list

Terramar Men's Thermawool CS 4.0 Pants

SKU: TRMMTW4P

  • Climasense fabric
  • Advanced odor control
  • Wicking, fast drying
  • Retains heat, breathable

Your Price: $28.95
Select Options

In Stock + Wish list

Terramar Thermasilk Filament Jersey Silk Crew Shirt for Men

SKU: TRMMSC

  • 100% Supersoft Pure Filament Jersey Silk
  • ec2 Qwik-Dri Thermoregulation Comfort Technology
  • Lightweight
  • Durable
  • Fabric Weight: 75 grams (2.6 oz.)

Your Price: $27.95
Select Options

In Stock + Wish list

Sale

The North Face Light Longsleeve Crew Neck for Women - Previous Season

SKU: NFCLLCW

  • Material: polyester, polyolefin
  • FlashDry technology 
  • Flat-locked seams
  • Weight: 3.35 oz.
  • Center back length: 25.5 in.

Regular: $45.00 $22.05 (49%)

Your Price: $22.95
Select Options

In Stock + Wish list

Sale

The North Face Warm Longsleeve Zip Neck for Women

SKU: NFCWLZW

  • Next-to-skin fit
  • Mock neck
  • Half-zip front
  • Flat-locked seams
  • Logo tag

Regular: $60.00 $30.05 (50%)

Your Price: $29.95
Select Options

In Stock + Wish list

Sale

Adidas Techfit 3/4 3-Stripe Tight for Women

SKU: ADS34T3S

  • Compression fit
  • Moisture wicking
  • Flat seams

Regular: $40.00 $15.05 (38%)

Starting at: $24.95
Select Options

In Stock + Wish list

Top Rated Gear

Terramar Thermasilk Filament Silk Pant for Men

5.0 (1 review)
Ratings Distribution
  • 5 Stars
     
    (1)
  • 4 Stars
     
    (0)
  • 3 Stars
     
    (0)
  • 2 Stars
     
    (0)
  • 1 Stars
     
    (0)

SKU: TRMMSP

  • ec2 Qwik-Dri Thermoregulation Comfort Technology
  • 100% Silk
  • Non-bulky
  • Anti-Microbial
  • Luxurious, Soft and Comfortable

Your Price: $27.95
Select Options

In Stock + Wish list

Top Seller

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
Select Options

In Stock + Wish list

Sale

Marmot ThermalClime Sport LS Crew Shirt for Men

SKU: MRMTLSCM

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

Regular: $42.00 $17.05 (41%)

Your Price: $24.95
Select Options

In Stock + Wish list

Sale

The North Face Light Longsleeve Crew Neck for Women

SKU: NFCLLCWN

  • Moisture wicking
  • Next to skin fit
  • Crew neck
  • Flat locked seams

Regular: $45.00 $22.05 (49%)

Your Price: $22.95
Select Options

In Stock + Wish list

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
Select Options

In Stock + Wish list

Sale

The North Face Warm Tight for Men

SKU: NFCWTMN

  • Moisture wicking
  • Next to skin fit
  • Fly opening
  • Ankle length
  • Hollow core fibers

Regular: $50.00 $25.05 (50%)

Your Price: $24.95
Select Options

In Stock + Wish list

Sale

Adidas Techfit Capri Tight for Women

SKU: ADSTCTW

  • Moisture wicking
  • Advanced Techfit fabric
  • Anti chafe waistband
  • Side panels

Regular: $40.00 $17.05 (43%)

Your Price: $22.95
Select Options

In Stock + Wish list

Sale

Regular: $55.00 $25.05 (46%)

Your Price: $29.95
Select Options

In Stock + Wish list

Sale

Columbia Midweight II Tight for Men

SKU: COLM2TM

  • Thermal reflective
  • Moisture wicking
  • Active fit
  • Antimicrobial

Regular: $45.00 $21.05 (47%)

Your Price: $23.95
Select Options

In Stock + Wish list

Terramar Women's Thermawool CS 4.0 Crew

SKU: TRMWTW4C

  • Climasense fabric
  • Advanced odor control
  • Wicking, fast drying
  • Retains heat, breathable

Your Price: $26.95
Select Options

In Stock + Wish list

Sale

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
Select Options

In Stock + Wish list

Sale

Mammut Go Warm Baselayer Pants for Women

3.0 (1 review)
Ratings Distribution
  • 5 Stars
     
    (0)
  • 4 Stars
     
    (0)
  • 3 Stars
     
    (1)
  • 2 Stars
     
    (0)
  • 1 Stars
     
    (0)

SKU: MMTGWPW

  • Contoured cut
  • Merino wool and polyester microfiber
  • Antimicrobial feature
  • Body Mapping technology

Regular: $54.00 $24.05 (45%)

Your Price: $29.95
Select Options

In Stock + Wish list

Sale

The North Face Warm Longsleeve Zip Neck for Men

SKU: NFCWLZMN

  • Hollow core
  • Lightweight wicking
  • Quick drying
  • Stain resistant
  • Hollow core fibers

Regular: $60.00 $30.05 (50%)

Your Price: $29.95
Select Options

In Stock + Wish list

Sale

Columbia Midweight II Long Sleeve Half Zip for Women

SKU: COLM2HZW

  • Advanced thermal reflective
  • Moisture wicking capabilities
  • Active fit
  • Antimicrobial

Regular: $50.00 $25.05 (50%)

Your Price: $24.95
Select Options

In Stock + Wish list