Merino Base Layer Clothing

Discover the ultimate comfort and performance with our merino base layer clothing collection. Crafted from premium merino wool, these layers provide exceptional warmth while remaining lightweight and breathable. Ideal for outdoor adventures or everyday wear, they wick moisture away from the skin, keeping you dry and comfortable. With natural odor resistance and a soft feel, our merino base layers are perfect for layering in any season. Elevate your wardrobe with versatile pieces designed to enhance your active lifestyle.

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

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

$90.00

SmartWool Women's Merino 150 Base Layer Bottoms
  • Black

SmartWool Women's Merino 150 Base Layer Bottoms

$90.00

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 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

Smartwool Men's Classic Thermal Merino Base Layer Bottoms
  • Black
  • Winter Moss Heather

Smartwool Men's Classic Thermal Merino Base Layer Bottoms

$61.97-$115.00

WAS: $115.00*

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

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

See Price in Cart

WAS: $120.00-$145.00*

Smartwool Kids' Classic Thermal Merino Base Layer Crew
  • Power Pink

Smartwool Kids' Classic Thermal Merino Base Layer Crew

$64.95

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 Long Sleeve Top
  • Black

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

$63.97-$85.00

WAS: $85.00*

Smartwool Men's Merino 250 Baselayer Bottom
  • Black

Smartwool Men's Merino 250 Baselayer Bottom

$61.97-$115.00

WAS: $115.00*

Smartwool Men's Merino 250 Baselayer Crewneck Shirt

Smartwool Men's Merino 250 Baselayer Crewneck Shirt

See Price in Cart

WAS: $115.00*

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Smartwool Women's Classic Thermal Merino Baselayer Long Sleeve Shirt

Smartwool Women's Classic Thermal Merino Baselayer Long Sleeve Shirt

See Price in Cart

WAS: $115.00*

Smartwool Women's Intraknit Thermal Merino Crew Baselayer Top

Smartwool Women's Intraknit Thermal Merino Crew Baselayer Top

$130.00

Smartwool Women's Merino 250 Baselayer Top

Smartwool Women's Merino 250 Baselayer Top

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WAS: $115.00*

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

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

See Price in Cart

WAS: $130.00*

Smartwool Women's Classic Thermal Merino Baselayer Bottoms

Smartwool Women's Classic Thermal Merino Baselayer Bottoms

$115.00

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 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

Smartwool Men's Classic All-Season Merino Baselayer Bottoms
  • Black

Smartwool Men's Classic All-Season Merino Baselayer Bottoms

$63.97-$85.00

WAS: $85.00*

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

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

$120.00

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

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

$75.97-$120.00

WAS: $120.00*

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

Smartwool Women's Thermal Merino Rib Top

$130.00

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

icebreaker Men's Merino Blend 200 Realfleece Descender 1/2 Zip Long Sleeve Top
  • Fathom Green/Cloud Ray/Cb
  • Black/Graphite/Cb

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

$160.00

Adidas Men's Terrex Xperior Merino 150 Baselayer Long-Sleeve Top
  • Grey Five

Adidas Men's Terrex Xperior Merino 150 Baselayer Long-Sleeve Top

$100.00

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

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

$85.00

Smartwool Merino 150 Baselayer Pants
  • Black

Smartwool Merino 150 Baselayer Pants

$90.00

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

Smartwool Men's Merino Sport 120 Long Sleeve Shirt
  • Honey Gold
  • Marmalade

Smartwool Men's Merino Sport 120 Long Sleeve Shirt

$75.00-$80.00

Smartwool Women's Merino 250 Baselayer Leggings

Smartwool Women's Merino 250 Baselayer Leggings

$61.97-$115.00

WAS: $115.00*

Smartwool Men's Intraknit Merino 200 Pattern Crewneck Baselayer Top
  • Honey Gold Mountain

Smartwool Men's Intraknit Merino 200 Pattern Crewneck Baselayer Top

$130.00

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

icebreaker Men's 125 ZoneKnit Merino Thermal Long Sleeve Shirt

$100.00

Smartwool Women's Intraknit Thermal Merino Baselayer Leggings
  • Nightfall Blue/Deep Navy

Smartwool Women's Intraknit Thermal Merino Baselayer Leggings

$97.97-$130.00

WAS: $130.00*

Smartwool Women's Thermal Merino Crew

Smartwool Women's Thermal Merino Crew

$120.00

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

Halfdays Women's Fay Merino Baselayer Top

$130.00

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

icebreaker Women's MerinoFine Long Sleeve Roll Neck Shirt

$220.00

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

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

Smartwool Women's Classic Thermal Merino Mock Neck

Smartwool Women's Classic Thermal Merino Mock Neck

$140.00

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

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

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

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

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

$80.00

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

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

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

$80.00

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

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

$85.00

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

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

$80.00

icebreaker Men's 125 ZoneKnit Merino Thermal Short Sleeve Shirt

icebreaker Men's 125 ZoneKnit Merino Thermal Short Sleeve Shirt

$90.00

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

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

$80.00

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

Smartwool Men's Thermal Merino 1/4 Zip Pullover

See Price in Cart

WAS: $120.00*

Icebreaker Men's Merino 150 Tech Lite III Short Sleeve T-Shirt
  • Ember
  • Dawn

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

$85.00

Icebreaker Men's Merino 150 Tech Lite III Short Sleeve T-Shirt
  • Cloud Ray
  • Midnight Navy

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

$85.00

Icebreaker Men's Merino 150 Tech Lite III Short Sleeve T-Shirt
  • Kyanite
  • Graphite

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

$85.00

Icebreaker Men's Merino 150 Tech Lite III Short Sleeve T-Shirt
  • Cloud Ray
  • Gritstone Heather

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

$85.00

Icebreaker Men's Merino 150 Tech Lite III Short Sleeve T-Shirt
  • Graphite

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

$85.00

Icebreaker Men's Merino 150 Tech Lite III Short Sleeve T-Shirt
  • Cloud Ray
  • Ether

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

$85.00

Icebreaker Men's Merino 150 Tech Lite III Short Sleeve T-Shirt
  • Loden

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

$85.00

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

Icebreaker Men's Merino 150 Tech Lite III Short Sleeve T-Shirt
  • Molten

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

$85.00

Icebreaker Men's Merino 150 Tech Lite III Short Sleeve T-Shirt
  • Hyper
  • Midnight Navy

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

$85.00

Icebreaker Men's Merino 150 Tech Lite III Short Sleeve T-Shirt
  • Black

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

$95.00

Icebreaker Men's Merino 150 Tech Lite III Short Sleeve T-Shirt
  • Dawn
  • Molten
  • Midnight Navy

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

$85.00

Icebreaker Men's Merino 150 Tech Lite III Short Sleeve T-Shirt
  • Black

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

$85.00

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Smartwool Men's Classic All-Season Merino Base Layer Crew Boxed
  • Fern Green
  • Black
  • Iron Heather

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

$90.00

Smartwool Youth Classic Thermal Merino Base Layer Crew

Smartwool Youth Classic Thermal Merino Base Layer Crew

$65.00

Smartwool Women's Classic All-Season Merino Base Layer Bottom Boxed
  • Black
  • Twilight Blue

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

$90.00

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

Smartwool Men's Classic All-Season Merino Base Layer 1/4 Zip Boxed

$95.00

Smartwool Women's Classic Thermal Merino Base Layer Crew Plus Boxed
  • Charcoal Heather

Smartwool Women's Classic Thermal Merino Base Layer Crew Plus Boxed

$115.00

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

Smartwool Men'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

Smartwool Youth Classic Thermal Merino Base Layer Bottom Boxed

$65.00-$130.00

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