Merino Wool Base Layer Clothing

Discover the ultimate comfort and performance with our merino wool base layer clothing collection. Designed to regulate temperature and wick moisture, these lightweight layers provide exceptional warmth without bulk. Perfect for outdoor adventures or everyday wear, merino wool offers natural breathability and odor resistance, keeping you fresh all day long. With a range of styles and fits, our base layers ensure a snug, comfortable fit that moves with you. Elevate your layering game and experience the benefits of merino wool for any activity.

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110 products
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SmartWool Women's Merino 150 Base Layer Long Sleeve Baselayer Shirt
  • Black
  • Light Gray Heather
  • Nightfall Blue

SmartWool Women's Merino 150 Base Layer Long Sleeve Baselayer Shirt

$90.00

(9)
SmartWool Women's Merino 150 Base Layer Bottoms
  • Black

SmartWool Women's Merino 150 Base Layer Bottoms

$90.00

(2)
Smartwool Men's Classic Thermal Merino Base Layer Bottoms
  • Black

Smartwool Men's Classic Thermal Merino Base Layer Bottoms

$115.00

(3)
Smartwool Men's Merino Classic All-Season Base Layer Long Sleeve
  • Sable Brown/Black
  • Black
  • Fern Green

Smartwool Men's Merino Classic All-Season Base Layer Long Sleeve

$90.00

(7)
Smartwool Men's Classic Thermal Merino Base Layer Crew Top

Smartwool Men's Classic Thermal Merino Base Layer Crew Top

See Price in Cart

WAS: $115.00*

SmartWool Men's Classic Thermal Merino 1/4 Zip Base Layer
  • Charcoal/Honey Gold
  • Winter Moss Summit Soul

SmartWool Men's Classic Thermal Merino 1/4 Zip Base Layer

$120.00-$145.00

Smartwool Youth Classic Thermal Merino Base Layer Crew
  • Black Ski Day

Smartwool Youth Classic Thermal Merino Base Layer Crew

$65.00

On Sale
Smartwool Men's Intraknit Thermal Merino Base Layer Bottom
  • Black White

Smartwool Men's Intraknit Thermal Merino Base Layer Bottom

$97.97

WAS: $130.00*

(6)
Smartwool Men's Intraknit™ Thermal Merino Base Layer Hoodie
  • Black/Charcoal
  • Charcoal/Winter Moss

Smartwool Men's Intraknit™ Thermal Merino Base Layer Hoodie

$180.00

Smartwool Women's Intraknit™ Thermal Merino Base Layer Hoodie
  • Charcoal/Coral Reef
  • Black/Charcoal

Smartwool Women's Intraknit™ Thermal Merino Base Layer Hoodie

$180.00

Smartwool Youth Classic Thermal Merino Base Layer Bottom Boxed
  • Black

Smartwool Youth Classic Thermal Merino Base Layer Bottom Boxed

$65.00

Smartwool Youth Classic Thermal Merino Base Layer Bottom Boxed
  • Pacific Blue
  • Nival Blue Heather
  • Coral Reef

Smartwool Youth Classic Thermal Merino Base Layer Bottom Boxed

$65.00-$130.00

On Sale
Smartwool Men's Classic All-Season Merino Base Layer Long Sleeve Top
  • Iron Heather
  • Black

Smartwool Men's Classic All-Season Merino Base Layer Long Sleeve Top

$63.97-$85.00

WAS: $85.00*

(1)
Smartwool Women's Classic All-Season Merino Base Layer Bottom Boxed
  • Black

Smartwool Women's Classic All-Season Merino Base Layer Bottom Boxed

$90.00

Smartwool Men's Intraknit Thermal Merino Base Layer Crew Neck Long Sleeved T-Shirt

Smartwool Men's Intraknit Thermal Merino Base Layer Crew Neck Long Sleeved T-Shirt

$130.00

Smartwool Men's Classic All-Season Merino Base Layer Crew Boxed
  • Black

Smartwool Men's Classic All-Season Merino Base Layer Crew Boxed

$90.00

Smartwool Men's Intraknit Thermal Merino Base Layer 1/4 Zip
  • Winter Moss
  • Black/White

Smartwool Men's Intraknit Thermal Merino Base Layer 1/4 Zip

$140.00

SmartWool Women's Intraknit Active Base Layer Bottoms
  • Black

SmartWool Women's Intraknit Active Base Layer Bottoms

$110.00

(3)
SmartWool Women's Intraknit Active Base Layer Long Sleeve Shirt
  • Lead

SmartWool Women's Intraknit Active Base Layer Long Sleeve Shirt

$110.00

Smartwool Men's Merino 250 Baselayer Crewneck Shirt

Smartwool Men's Merino 250 Baselayer Crewneck Shirt

$115.00

(99)
Smartwool Women's Classic Thermal Merino Baselayer Bottoms

Smartwool Women's Classic Thermal Merino Baselayer Bottoms

$115.00

(4)
Smartwool Men's Merino 250 Baselayer Bottom
  • Black

Smartwool Men's Merino 250 Baselayer Bottom

$115.00

(58)
On Sale
Smartwool Women's Classic Thermal Merino Baselayer Long Sleeve Shirt

Smartwool Women's Classic Thermal Merino Baselayer Long Sleeve Shirt

$72.97-$115.00

WAS: $115.00*

(1)
Smartwool Women's Intraknit Thermal Merino Crew Baselayer Top

Smartwool Women's Intraknit Thermal Merino Crew Baselayer Top

$130.00

Smartwool Men's Classic All-Season Merino Base Layer 1/4 Zip Long Sleeve Top
  • Black

Smartwool Men's Classic All-Season Merino Base Layer 1/4 Zip Long Sleeve Top

$90.00

Smartwool Men's Intraknit Thermal Merino Base Layer Colorblock Crew Neck T-Shirt
  • Deep Navy/Charcoal
  • Winter Moss/Charcoal

Smartwool Men's Intraknit Thermal Merino Base Layer Colorblock Crew Neck T-Shirt

$130.00

(2)
Smartwool Women's Merino 250 Baselayer Top

Smartwool Women's Merino 250 Baselayer Top

$115.00

(68)
On Sale
Smartwool Men's Classic All-Season Merino Baselayer Bottoms
  • Iron Heather
  • Black

Smartwool Men's Classic All-Season Merino Baselayer Bottoms

$63.97-$85.00

WAS: $85.00*

On Sale
Smartwool Men's Classic Thermal Merino Base Layer Pattern Quarter Zip Pullover
  • Charcoal Heather
  • Deep Navy Color Shift

Smartwool Men's Classic Thermal Merino Base Layer Pattern Quarter Zip Pullover

$53.18-$120.00

WAS: $120.00*

(2)
Smartwool Women's Merino 250 Pattern 1/4 Zip Baselayer Shirt
  • Jade Marble

Smartwool Women's Merino 250 Pattern 1/4 Zip Baselayer Shirt

$115.00

(10)
Smartwool Women's Merino 250 1/4 Zip Baselayer Top
  • Black

Smartwool Women's Merino 250 1/4 Zip Baselayer Top

$120.00

(48)
Hot Chillys Men's Clima-Wool Merino Bottom
  • Od Green

Hot Chillys Men's Clima-Wool Merino Bottom

$125.00

Smartwool Women's Intraknit Thermal Merino Pattern Baselayer Top
  • Black

Smartwool Women's Intraknit Thermal Merino Pattern Baselayer Top

$130.00

Smartwool Women's Thermal Merino Rib Top
  • Chalk Violet Heather
  • Black
  • Toasted Coconut Heather

Smartwool Women's Thermal Merino Rib Top

$130.00

On Sale
Hot Chillys Women's Clima-Wool Merino Bottom
  • Black
  • Grey Heather

Hot Chillys Women's Clima-Wool Merino Bottom

See Price in Cart

WAS: $125.00*

Smartwool Merino 150 Baselayer Pants
  • Black

Smartwool Merino 150 Baselayer Pants

$90.00

(2)
Smartwool Men's Intraknit Merino 200 Pattern Crewneck Baselayer Top
  • Honey Gold Mountain
  • Deep Navy Mountain Scape

Smartwool Men's Intraknit Merino 200 Pattern Crewneck Baselayer Top

$130.00

Smartwool Women's Merino 250 Baselayer Leggings

Smartwool Women's Merino 250 Baselayer Leggings

$115.00

(64)
On Sale
Smartwool Women's Intraknit Thermal Merino Baselayer Leggings
  • Black
  • Nightfall Blue/Deep Navy

Smartwool Women's Intraknit Thermal Merino Baselayer Leggings

$65.00-$130.00

WAS: $130.00*

(5)
Smartwool Women's Thermal Merino Crew

Smartwool Women's Thermal Merino Crew

$120.00

SmartWool Women's Merino Short Sleeve T-Shirt
  • Coral Reef
  • Serene Blue

SmartWool Women's Merino Short Sleeve T-Shirt

$80.00

Smartwool Women's Merino Tank
  • Twilight Blue

Smartwool Women's Merino Tank

$69.95

Smartwool Women's Classic Thermal Merino Mock Neck
  • Coral Reef Floral
  • Chalk Violet Heather

Smartwool Women's Classic Thermal Merino Mock Neck

$140.00

Smartwool Men's Merino SS Tee

Smartwool Men's Merino SS Tee

$80.00

(1)
Smartwool Women's Thermal Merino Turtleneck Ribbed Sweater

Smartwool Women's Thermal Merino Turtleneck Ribbed Sweater

$130.00

(1)
On Sale
Smartwool Women's Merino SS Tee

Smartwool Women's Merino SS Tee

$79.95-$80.00

WAS: $80.00*

(5)
icebreaker Men's Merino 125 Cool-Lite Sphere III Long-Sleeve Shirt
  • Dawn Heather

icebreaker Men's Merino 125 Cool-Lite Sphere III Long-Sleeve Shirt

$85.00

(30)
icebreaker Women's Merino Blend 200 Realfleece Descender 1/2 Zip Long Sleeve Top
  • Graphite/Black/Cb

icebreaker Women's Merino Blend 200 Realfleece Descender 1/2 Zip Long Sleeve Top

$160.00

(1)
Halfdays Women's Fay Merino Baselayer Top
  • Navy
  • Black
  • Spiked Cocoa

Halfdays Women's Fay Merino Baselayer Top

$130.00

(53)
icebreaker Women's MerinoFine Long Sleeve Roll Neck Shirt
  • Electron Pink

icebreaker Women's MerinoFine Long Sleeve Roll Neck Shirt

$220.00

(1)
Smartwool Men's Thermal Merino 1/4 Zip Pullover
  • Mink Heather
  • Black

Smartwool Men's Thermal Merino 1/4 Zip Pullover

$120.00

icebreaker Men's 125 ZoneKnit Merino Thermal Long Sleeve Shirt
  • Ether

icebreaker Men's 125 ZoneKnit Merino Thermal Long Sleeve Shirt

$100.00

(3)
icebreaker Women's Merino 125 Cool-Lite Sphere III Short Sleeve Shirt

icebreaker Women's Merino 125 Cool-Lite Sphere III Short Sleeve Shirt

$75.00

(23)
icebreaker Men's Merino 125 Cool-Lite Sphere III Short Sleeve Shirt

icebreaker Men's Merino 125 Cool-Lite Sphere III Short Sleeve Shirt

$75.00

(35)
Icebreaker Women's Merino 150 Tech Lite III T-Shirt

Icebreaker Women's Merino 150 Tech Lite III T-Shirt

$80.00

(55)
Smartwool Women's Merino Sport 120 V-Neck SS Tee
  • Fern Green
  • Black

Smartwool Women's Merino Sport 120 V-Neck SS Tee

$60.00

(4)
Icebreaker Women's Merino 150 Tech Lite III Short Sleeve T-Shirt
  • Lux
  • Ecru Heather

Icebreaker Women's Merino 150 Tech Lite III Short Sleeve T-Shirt

$85.00

(55)
Icebreaker Women's Merino 150 Tech Lite III Short Sleeve T-Shirt
  • Black
  • Dawn

Icebreaker Women's Merino 150 Tech Lite III Short Sleeve T-Shirt

$80.00

(55)
Icebreaker Women's Merino 150 Tech Lite III Short Sleeve T-Shirt
  • Black
  • Midnight Navy
  • Glow

Icebreaker Women's Merino 150 Tech Lite III Short Sleeve T-Shirt

$80.00

(63)
Icebreaker Women's Merino 150 Tech Lite III Short Sleeve T-Shirt
  • Graphite

Icebreaker Women's Merino 150 Tech Lite III Short Sleeve T-Shirt

$85.00

(55)
Icebreaker Men's Merino 150 Tech Lite III T-Shirt
  • Black

Icebreaker Men's Merino 150 Tech Lite III T-Shirt

$85.00

(78)
Icebreaker Men's Merino 150 Tech Lite III T-Shirt

Icebreaker Men's Merino 150 Tech Lite III T-Shirt

$80.00

(78)
icebreaker Men's Merino 150 Tech Lite III Short Sleeve T-Shirt
  • Dawn
  • Black

icebreaker Men's Merino 150 Tech Lite III Short Sleeve T-Shirt

$85.00

(78)
icebreaker Women's Merino 150 Tech Lite III Short Sleeve T-Shirt
  • Black

icebreaker Women's Merino 150 Tech Lite III Short Sleeve T-Shirt

$85.00

(55)
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Smartwool Women's Thermal Merino ¼ Zip Pullover
  • Charcoal Heather
  • Black Cherry Heather

Smartwool Women's Thermal Merino ¼ Zip Pullover

$120.00

(2)
Smartwool Men's Merino Sport 120 Long Sleeve Shirt
  • Honey Gold

Smartwool Men's Merino Sport 120 Long Sleeve Shirt

$75.00

Smartwool Men's Merino Sport 120 Short Sleeve T-Shirt

Smartwool Men's Merino Sport 120 Short Sleeve T-Shirt

$65.00

Smartwool Women's Merino Sport 120 Short Sleeve T-Shirt
  • Honey
  • Twilight Blue

Smartwool Women's Merino Sport 120 Short Sleeve T-Shirt

$65.00

(3)
Smartwool Men's Everyday Exploration Merino Long Sleeve T-Shirt
  • Medium Gray Heather
  • Deep Navy Heather

Smartwool Men's Everyday Exploration Merino Long Sleeve T-Shirt

$80.00

(1)
SmartWool Men's Hoodie
  • Black

SmartWool Men's Hoodie

$100.00

SmartWool Women's Active Long Sleeve Shirt
  • Nightfall Blue

SmartWool Women's Active Long Sleeve Shirt

$85.00

SmartWool Men's Active Short Sleeve T-Shirt

SmartWool Men's Active Short Sleeve T-Shirt

$70.00

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