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.
Sale

The North Face Warm Longsleeve Crew Neck for Men

SKU: NFCWLCMN

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

Regular: $32.95 $8.00 (24%)

Your Price: $24.95
Select Options

In Stock + Wish list

Sale

Under Armour Original Boxerjock Brief 9"

SKU: UNAOB9M

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

Your Price: $13.95
Select Options

In Stock + Wish list

Sale

The North Face Warm Longsleeve Crew Neck for Women

SKU: NFCWLCWXLBK

  • Next-to-skin fit
  • Crew neck
  • Flat-locked seams
  • Feminine fit

Regular: $50.00 $23.05 (46%)

Your Price: $26.95

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

The North Face Warm Longsleeve Zip Neck for Men

SKU: NFCWLZMN

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

Regular: $39.95 $10.00 (25%)

Your Price: $29.95
Select Options

In Stock + Wish list

Minus33 Lightweight 1/4 Length Zip for Women

SKU: MINTCW

  • 100 percent merino wool
  • Moisture wicking
  • Odor repellent
  • Flatlock seams

List: $64.99 $9.50 (15%)

Your Price: $55.49
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

The North Face Warm Longsleeve Zip Neck for Men - Previous Season

SKU: NFCWLZNMXLBK

  • Hollow core and airbrushed fibers
  • Lightweight
  • Quick drying
  • Stain and odor resistant
  • Flat-locked seams

Regular: $60.00 $30.05 (50%)

Your Price: $29.95

In Stock + Wish list

Sale

ColdPruf Performance 58 Crew for Women

SKU: CLDPRCW

  • Single layer engineering
  • Max dryness, antimicrobial
  • Moisture management
  • Polyester, spandex

Regular: $18.99 $2.00 (11%)

Starting at: $16.99
Select Options

In Stock + Wish list

Adidas Ultimate 3/4 Tight for Women

SKU: ADSUT34T

  • Wide elastic waistband
  • Climalite fabric
  • Fitted fit
  • Adidas logo on hip

Your Price: $38.00
Select Options

In Stock + Wish list

Sale

Terramar Women's Thermawool 100% Merino Wool Pants

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

SKU: TRMWTWP

  • 100% Mercerized Super Soft Merino Wool Jersey
  • Machine-Washable
  • Itch-free
  • Breathable
  • Flatlock Seam Construction

Regular: $35.95 $7.00 (19%)

Your Price: $28.95
Select Options

In Stock + Wish list

Ibex Woolies 220 Crew Stripe for Women

SKU: IBXW2CSW

  • Rib knit merino
  • Form fit
  • Flatlock seams
  • Raglan sleeves

Your Price: $110.00
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

Terramar Men's Thermawool CS 4.0 Half-Zip

SKU: TRMMTW4H

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

Your Price: $35.95
Select Options

In Stock + Wish list

Sale

ColdPruf Performance 98 Pants for Men

SKU: CLDPRPM

  • Single layer engineering
  • Max dryness, antimicrobial
  • Moisture management
  • Polyester, spandex

Regular: $18.99 $2.00 (11%)

Starting at: $16.99
Select Options

In Stock + Wish list

Sale

Marmot ThermalClime Sport Tight for Women

SKU: MRMTSTW

  • Flat locked seams
  • Gusseted crotch
  • Recycled polyester
  • Polartec power dry

Regular: $38.00 $13.05 (34%)

Your Price: $24.95
Select Options

In Stock + Wish list

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
Select Options

In Stock + Wish list

Sale

Adidas Ultimate Tight for Women

SKU: ADSUTW

  • Wide elastic waistband
  • Climalite fabric
  • Fitted fit
  • Flatlock seams

Regular: $43.00 $18.05 (42%)

Starting at: $24.95
Select Options

In Stock + Wish list

Sale

Terramar Women's Thermawool 100% Merino Wool V-Neck Shirt

SKU: TRMWTWV

  • Superfine Merino Wool
  • Soft
  • Breathable
  • Moisture Management
  • Anti-microbial

Regular: $35.95 $8.00 (22%)

Your Price: $27.95
Select Options

In Stock + Wish list