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 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
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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
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In Stock + Wish list

Sale

The North Face Warm Tight for Women

SKU: NFCWTWN

  • Elastic logo waist
  • Flat locked seams
  • Ankle length
  • Hollow core fibers
  • Lightweight, wicking

Regular: $50.00 $25.05 (50%)

Your Price: $24.95
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In Stock + Wish list

Sale

The North Face Light Tight for Men - Previous Season

SKU: NFCLTM

  • Fly opening
  • Elastic logo waist
  • Flat-locked seams
  • FlashDry thermal technology
  • Material: polyester, polyolefin

Regular: $34.95 $15.00 (43%)

Starting at: $19.95
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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
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In Stock + Wish list

Sale

Mammut Go Warm Longsleeve Baselayer for Women

SKU: MMTGWLW

  • Contoured cut
  • Extended back
  • 100% Polyester microfiber
  • Merino wool and polyester mix
  • Antimicrobial feature

Regular: $69.00 $34.05 (49%)

Your Price: $34.95
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In Stock + Wish list

Sale

The North Face Light Tight for Men

SKU: NFCLTMN

  • Hollow core fibers
  • Stain resistant
  • Flat-lock seams
  • Two-tone fabric

Regular: $45.00 $18.05 (40%)

Your Price: $26.95
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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

Sale

Mammut 3/4 Pants Warm-Quality Thermal Underwear for Men

SKU: MMT3PWQM

  • Top high-end functionality
  • Youthful design
  • Fast drying
  • Antimicrobial
  • Specially developed fabrics 

Regular: $70.00 $38.05 (54%)

Your Price: $31.95
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In Stock + Wish list

Sale

The North Face Light Longsleeve Zip Neck for Women

SKU: NFCLLZWXSBK

  • Material: polyester, polyolefin
  • Half-length zipper
  • Flat-locked seams
  • FlashDry microparticles
  • Weight: 3.7 oz.

Regular: $50.00 $25.05 (50%)

Your Price: $24.95

In Stock + Wish list

Sale

Regular: $55.00 $25.05 (46%)

Your Price: $29.95
Select Options

In Stock + Wish list

Sale

Regular: $60.00 $25.05 (42%)

Your Price: $34.95
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In Stock + Wish list

Sale

The North Face Light Tight for Women

SKU: NFCLTW

  • Elastic logo waist
  • Flat locked seams
  • Ankle length
  • Moisture wicking

Regular: $45.00 $18.05 (40%)

Your Price: $26.95
Select Options

In Stock + Wish list

Sale

Mammut Go Warm Longsleeve Shirt Baselayer for Men

SKU: MMTGWSM

  • Extended back
  • Contoured cut
  • Body Mapping technology
  • Polyester microfiber 
  • Antimicrobial feature

Regular: $75.00 $30.05 (40%)

Your Price: $44.95
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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

The North Face Light Boot Top Bottom for Men

SKU: NFCLBTBM2XBK

  • Elastic logo waist
  • Flat-locked seams
  • Fly opening
  • Three-quarter length
  • Moisture-wicking polyester knit fabric

Regular: $45.00 $25.05 (56%)

Your Price: $19.95

In Stock + Wish list