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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144 products
View:  4896All|144 Products
SmartWool Merino 150 Base Layer Long Sleeve Shirt
  • Black

SmartWool Merino 150 Base Layer Long Sleeve 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 Bottoms
  • Charcoal Heather
  • Black
  • Deep Navy

Smartwool Men's Classic Thermal Merino Base Layer Bottoms

$115.00

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

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

$90.00

Smartwool Men's Classic Thermal Merino Base Layer Crew Top
  • Black
  • Winter Moss Heather
  • Black Color Shift

Smartwool Men's Classic Thermal Merino Base Layer Crew Top

$115.00

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

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

$75.97-$145.00

WAS: $120.00-$145.00*

On Sale
Smartwool Men's Merino 150 Base Layer Long Sleeve Top
  • Black

Smartwool Men's Merino 150 Base Layer Long Sleeve Top

$85.00

WAS: $90.00*

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

Smartwool Men's Intraknit Thermal Merino Base Layer Bottom

$130.00

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

Smartwool Kids' Classic Thermal Merino Base Layer Crew

$64.95

Smartwool Kids' Classic Thermal Merino Base Layer Bottom
  • Cascade Multi Stripe

Smartwool Kids' Classic Thermal Merino Base Layer Bottom

$64.95

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

$85.00

Smartwool Men's Intraknit Thermal Merino Base Layer Crew Neck Long Sleeved T-Shirt
  • Winter Moss
  • Black/White
  • Charcoal Black

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

$130.00

SmartWool Youth Classic Thermal ¼ Zip Base Layer
  • Rhythmic Red

SmartWool Youth Classic Thermal ¼ Zip Base Layer

$65.00

Smartwool Men's Intraknit Thermal Max Merino Base Layer Three-Quarter Bottom
  • Black White

Smartwool Men's Intraknit Thermal Max Merino Base Layer Three-Quarter Bottom

$120.00

Smartwool Men's Merino 250 Baselayer Crewneck Shirt

Smartwool Men's Merino 250 Baselayer Crewneck Shirt

$115.00

Smartwool Men's Merino 250 Baselayer Bottom
  • Charcoal Heather
  • Black
  • Deep Navy

Smartwool Men's Merino 250 Baselayer Bottom

$115.00

Smartwool Women's Classic Thermal Merino Baselayer Bottoms

Smartwool Women's Classic Thermal Merino Baselayer Bottoms

$115.00

Smartwool Women's Classic Thermal Merino Baselayer Long Sleeve Shirt

Smartwool Women's Classic Thermal Merino Baselayer Long Sleeve Shirt

$115.00

Smartwool Women's Intraknit Thermal Merino Crew Baselayer Top
  • Black/White
  • Nightfall Blue/Deep Navy
  • Black White Stripe

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
  • Charcoal/Winter Moss
  • Deep Navy/Twilight Blue

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

$130.00

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

Smartwool Men's Classic All-Season Merino Baselayer Bottoms

$85.00

Smartwool Women's Merino 250 Baselayer Top

Smartwool Women's Merino 250 Baselayer Top

$115.00

Smartwool Women's Merino 250 Pattern Crewneck Baselayer Top
  • Light Gray Mountain Scape
  • Honey Gold Dot

Smartwool Women's Merino 250 Pattern Crewneck Baselayer Top

$110.00

Smartwool Men's Intraknit Thermal Merino Base Layer Colorblock Quarter-Zip Shirt
  • Shale Dune

Smartwool Men's Intraknit Thermal Merino Base Layer Colorblock Quarter-Zip Shirt

$135.00

On Sale
Smartwool Youth Merino 250 Crewneck Baselayer Top
  • Blueberry Hill Heather

Smartwool Youth Merino 250 Crewneck Baselayer Top

$25.88

WAS: $60.00*

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

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

$120.00

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 Merino 250 1/4 Zip Baselayer Top

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

$120.00

Smartwool Women's Intraknit Thermal Max Merino ¼ Zip Baselayer Top
  • Black

Smartwool Women's Intraknit Thermal Max Merino ¼ Zip Baselayer Top

$155.00

Hot Chillys Men's Clima-Wool Merino Bottom
  • Nightfall
  • Od Green

Hot Chillys Men's Clima-Wool Merino Bottom

$125.00

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

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

$120.00

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

Smartwool Women's Intraknit Thermal Merino Pattern Baselayer Top

$130.00

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

Smartwool Women's Thermal Merino Rib Top

$130.00

Smartwool Youth Merino 250 Pattern Crewneck Baselayer Top
  • Sunset Coral Mountain

Smartwool Youth Merino 250 Pattern Crewneck Baselayer Top

$60.00

Hot Chillys Women's Clima-Wool Merino Bottom
  • Nightfall

Hot Chillys Women's Clima-Wool Merino Bottom

$125.00

Smartwool Youth Merino 250 Baselayer Bottom
  • Power Pink

Smartwool Youth Merino 250 Baselayer Bottom

$49.97-$60.00

WAS: $60.00*

Smartwool Merino 150 Baselayer Pants
  • Black

Smartwool Merino 150 Baselayer Pants

$90.00

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

Smartwool Women's Merino 250 Baselayer Leggings

Smartwool Women's Merino 250 Baselayer Leggings

$115.00

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

Smartwool Women's Intraknit Thermal Merino Baselayer Leggings

$130.00

Smartwool Women's Thermal Merino Crew
  • Toasted Coconut Heather
  • Arctic Green Heather
  • Charcoal Heather

Smartwool Women's Thermal Merino Crew

$120.00

Smartwool Women's Intraknit Thermal Base Layer 3/4 Leggings
  • Black White

Smartwool Women's Intraknit Thermal Base Layer 3/4 Leggings

$120.00

Smartwool Women's Thermal Merino Pattern Crewneck Long Sleeve Shirt
  • Light Gray Mtn Fairisle
  • Festive Fuschia Mtnscape

Smartwool Women's Thermal Merino Pattern Crewneck Long Sleeve Shirt

$110.00

Smartwool Thermal Merino Pattern Crew
  • Laguna
  • Black Mountain Print

Smartwool Thermal Merino Pattern Crew

$110.00

Smartwool Women's Merino Tank
  • Twilight Blue

Smartwool Women's Merino Tank

$69.95

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

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

$60.00

Outdoor Research Alpine Onset Merino 240 Sensor Liner
  • Light Pewter
  • Black

Outdoor Research Alpine Onset Merino 240 Sensor Liner

$45.00

Smartwool Men's Merino SS Tee

Smartwool Men's Merino SS Tee

$80.00

Smartwool Women's Thermal Merino Turtleneck Ribbed Sweater
  • Arctic Green Heather
  • Charcoal Heather
  • Chalk Violet Heather

Smartwool Women's Thermal Merino Turtleneck Ribbed Sweater

$120.00

On Sale
Smartwool Women's Merino SS Tee

Smartwool Women's Merino SS Tee

$79.95

WAS: $80.00*

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

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

$85.00

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

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 Thermal Merino 1/4 Zip
  • Black
  • Charcoal Heather

Smartwool Men's Thermal Merino 1/4 Zip

$120.00

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

Halfdays Women's Fay Merino Baselayer Top

$95.00-$130.00

icebreaker Women's Merino 260 Quantum IV Long Sleeve Zip Hoodie
  • Dawn
  • Lichen
  • Black

icebreaker Women's Merino 260 Quantum IV Long Sleeve Zip Hoodie

$240.00

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

Smartwool Women's Merino Sport 120 High Neck Tank Top
  • Black

Smartwool Women's Merino Sport 120 High Neck Tank Top

$45.00

Smartwool Women's Merino Sport 120 Hoodie
  • Ultra Violet
  • Black

Smartwool Women's Merino Sport 120 Hoodie

$79.95

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 125 ZoneKnit Merino Thermal Long Sleeve Shirt
  • Fathom Green/Cloud Ray/Cb
  • Black
  • Ether

icebreaker Men's 125 ZoneKnit Merino Thermal Long Sleeve Shirt

$100.00

Smartwool Women's Thermal Merino ¼ Zip Pullover
  • Purple Iris Floral
  • Black Cherry Heather
  • Charcoal Heather

Smartwool Women's Thermal Merino ¼ Zip Pullover

$120.00

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

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

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

$80.00

Smartwool Men's Merino Sport 150 Short Sleeve Polo
  • Medium Gray Heather

Smartwool Men's Merino Sport 150 Short Sleeve Polo

$80.00

Smartwool Men's Long Sleeve Heavy Henley Sweater
  • Light Gray Heather

Smartwool Men's Long Sleeve Heavy Henley Sweater

$190.00

On Sale
Smartwool Men's Button Down SS Shirt
  • Black
  • Light Grey Heather
  • Deep Navy

Smartwool Men's Button Down SS Shirt

$84.95

WAS: $85.00*

Carhartt Men's Force Mid-Weight Synthetic Wool Blend Base Layer Crew
  • Black Heather

Carhartt Men's Force Mid-Weight Synthetic Wool Blend Base Layer Crew

$44.99

Smartwool Men's Everyday Exploration Merino Short Sleeve Polo
  • Black Heather

Smartwool Men's Everyday Exploration Merino Short Sleeve Polo

$80.00

SmartWool Men's Short Sleeve Polo T-Shirt
  • Twilight Blue
  • Honey Dew
  • Light Grey Heather

SmartWool Men's Short Sleeve Polo T-Shirt

$80.00

Smartwool Men's Sparwood Crew Sweater

Smartwool Men's Sparwood Crew Sweater

$105.00

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