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 Boot Top Bottom for Men

    SKU: NFCWBTBM2XBK

    • Elastic logo waist
    • Fly opening
    • Flat-locked seams
    • Three-quarter length
    • Midweight base layer pants 

    Regular: $50.00 $25.05 (50%)

    Your Price: $24.95

    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

    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

    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

    Terramar Women's Thermawool CS 4.0 Pants

    SKU: TRMWTW4P

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

    Your Price: $26.95
    Select Options

    In Stock + Wish list

    Sale

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

    SKU: NFCWLCM

    • Crew neck
    • Length from Center Back: 28.5 in.
    • Long sleeves
    • FlashDry technology
    • Partial stretch fabrication

    Regular: $50.00 $25.05 (50%)

    Your Price: $24.95
    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

    Polarmax Double Base Layer Pants for Women

    4.0
    (1 review)
    Ratings Distribution
    • 5 Stars
       
      (0)
    • 4 Stars
       
      (1)
    • 3 Stars
       
      (0)
    • 2 Stars
       
      (0)
    • 1 Stars
       
      (0)

    SKU: PMXDBLPW

    • Quick drying
    • Scent prevent anti-microbial
    • Comfortable flat seams
    • Relaxed fit
    • Feels like cotton

    Your Price: $20.95
    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 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

    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: $50.00 $25.05 (50%)

    Your Price: $24.95
    Select Options

    In Stock + Wish list

    Terramar Ecolator CS Fleece Half-Zip 3.0 for Women

    SKU: TRMECH3W

    • Comfort in all seasons
    • Antimicrobial
    • Heavyweight
    • Breathable

    Your Price: $28.95
    Select Options

    In Stock + Wish list

    Terramar Men's Thermolator II Half-Zip with Mesh Shirt

    SKU: TRMMT2H

    • 86% Micro-Polyester and 14% Spandex
    • Qwik-Dri Thermoregulation Comfort Technology
    • Two Fabric Jersey and Mesh Construction
    • Ergonomic Zipper Pull
    • Anti-microbial

    Your Price: $20.95
    Select Options

    In Stock + Wish list

    Sale

    Polarmax Micro H2 Base Layer Unfitted Hoodie

    SKU: PMXMHUH

    • Relaxed Fit
    • Flat Seams
    • Antimicrobial
    • Moisture Wicking
    • Unisex design

    Regular: $34.95 $10.00 (29%)

    Your Price: $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

    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

    Sale

    Marmot Trail Breeze 3/4 Tight for Women X-Small Dark Steel

    SKU: MRMB3TW

    • Polygiene technology finish
    • Ultraviolet protection factor 30
    • Mesh paneling
    • Compression fit
    • Coolmax interior gusset liner

    Regular: $65.00 $40.05 (62%)

    Your Price: $24.95
    Select Options

    In Stock + Wish list

    Terramar Ecolator CS Fleece Scoop 3.0 for Women

    SKU: TRMECS3W

    • Comfort in all seasons
    • Antimicrobial
    • Heavyweight
    • Breathable

    Your Price: $25.95
    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: $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%)

    Your Price: $24.95
    Select Options

    In Stock + Wish list