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.

SmartWool Midweight Pattern Crew Top for Women

SKU: SMTMPCW

  • 100% Merino Wool
  • Form Fitting 
  • Jacquard Knit 
  • Back Body Seam
  • Shoulder Panels

List: $105.00

Your Price: $104.95
Select Options

In Stock + Wish list

SmartWool NTS Micro 150 Pattern Crew for Men

SKU: SMTMPM

  • Form fitting Jersey knit
  • Crew with set-in sleeves
  • Shoulder panels
  • Flatlock seam construction

Your Price: $79.95
Select Options

In Stock + Wish list

SmartWool NTS Midweight 250 Crew for Men

SKU: SMTMIM

  • Midweight baselayer
  • Set-in sleeves
  • Flatlock seams
  • Form Fit

Your Price: $94.95
Select Options

In Stock + Wish list

Sale

Mountain Hardwear MicroChill Zip T for Men

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

SKU: MHWMCZMN

  • Center Back Length: 28.5 in. / 72 cm.
  • Flat-lock construction
  • High-cut collar
  • Flat-lock construction
  • Velous Micro Fleece

Regular: $55.00 $20.05 (36%)

Starting at: $34.95
Select Options

In Stock + Wish list

Sale

ColdPruf Classic 170 Silk Weight Merino Wool Crew for Men

SKU: CLDCCM

  • Merino wool
  • 5 ounce silk weight
  • Single layer jersey knit
  • Tagless, flat seams

Regular: $46.99 $5.00 (11%)

Starting at: $41.99
Select Options

In Stock + Wish list

Minus33 Chocorua Men's Mid-Weight Crew

SKU: MINMWCM

  • 100% 18.5 Micron Merino Wool
  • 230 g/m2 Interlock knit construction
  • Flat lock seams

List: $65.99 $9.50 (14%)

Your Price: $56.49
Select Options

In Stock + Wish list

Sale

Ibex Woolies 1 Crew for Women

SKU: IBXW1W

  • Breathable
  • Anti-odor
  • Raglan sleeves
  • Flatlock seams

Regular: $80.00 $30.05 (38%)

Your Price: $49.95
Select Options

In Stock + Wish list

SmartWool NTS Midweight 250 Pattern Crew for Women

SKU: SMTRPW

  • Body enhancing fit
  • Flatlock seams
  • Offset shoulder panels
  • Interlock knit

Your Price: $105.00
Select Options

In Stock + Wish list

Minus33 Merino Wool MidWeight Crew Neck - Men's

Mossy Oak Infinity

SKU: MINMCMMO

  • Merino wool
  • Interlock knit construction
  • Flat lock seams
  • Machine wash, dry

List: $80.99 $12.00 (15%)

Your Price: $68.99
Select Options

In Stock + Wish list

Sale

Ibex Woolies 2 Crew for Women - Flora

SKU: IBXW2W

  • Breathable
  • Anti-odor
  • Flatlock seams
  • Set-in sleeves

Regular: $110.00 $40.05 (36%)

Your Price: $69.95
Select Options

In Stock + Wish list

Arc'teryx RHO AR Zip Neck for Men

SKU: ARCRAZNM

  • Moisture wicking
  • Great warmth-to-weight ratio
  • Flatlock construction
  • Collar zipper

Your Price: $139.00
Select Options

In Stock + Wish list

Polar Max Performance Tech Silk Crew for Men

SKU: PMXPSCM

  • Lightweight mesh
  • Anti microbial
  • Wicks moisture
  • Stretchable, flexible

Your Price: $22.95
Select Options

In Stock + Wish list

Sale

Marmot Windridge Short Sleeve Shirt for Men

SKU: MRMWSSM

  • Ultraviolet protection factor (UPF) 50
  • Knit, polyester fabric
  • Tag-free neckline
  • Flat-locked seams
  • Mesh panels

Regular: $30.00 $10.05 (34%)

Starting at: $19.95
Select Options

In Stock + Wish list

Top Rated Gear

List: $75.99 $11.00 (14%)

Your Price: $64.99
Select Options

In Stock + Wish list

Terramar Men's Thermolator II Mock

SKU: TRMMT2M

  • Brushed polyester
  • 4 way stretch
  • Climasense fabric
  • Mesh ventilation panels

List: $25.00 $6.05 (24%)

Starting at: $18.95
Select Options

In Stock + Wish list

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
Select Options

In Stock + Wish list

List: $85.00

Your Price: $84.95
Select Options

In Stock + Wish list

Minus33 Kinsman MidWeight Turtleneck for Men

SKU: MINMTM

  • Merino wool
  • Interlock construction
  • Flat lock seams
  • Machine washable

List: $75.99 $11.00 (14%)

Your Price: $64.99
Select Options

In Stock + Wish list

Top Rated Gear

List: $89.99 $13.50 (15%)

Your Price: $76.49
Select Options

In Stock + Wish list

Minus33 Ticonderoga Men's Lightweight Crew

SKU: MINLCM

  • 100% 17.5-Micron-Merino wool 
  • 170 g/m2 Jersey-knit construction
  • Flat-lock seams
  • Machine-washable
  • Sizes available: X-small to XXX-large

List: $59.99 $9.00 (15%)

Your Price: $50.99
Select Options

In Stock + Wish list