Merino Wool Thermals

Stay warm and comfortable with our collection of merino wool thermals, designed for ultimate insulation and breathability. Crafted from high-quality merino wool, these thermals provide excellent moisture-wicking properties, keeping you dry during any activity. Lightweight yet incredibly warm, they are perfect for layering in colder weather. Enjoy the softness against your skin, along with natural odor resistance for all-day freshness. Embrace the perfect blend of functionality and comfort with our merino wool thermals, ideal for outdoor adventures or cozy days indoors.

Filter
Sort: Best Selling
Filter
brand
Top Brands
(68)
(11)
(4)
(4)
(3)
(2)
(2)
(2)
(1)
(1)
View All brands +
activity
(31)
(2)
(2)
(1)
(11)
(3)
(5)
(48)
features
(1)
(1)
(2)
(6)
(4)
(1)
gender
(5)
(3)
(46)
(49)
hat style
height
material
neckline
product type
Weight
shirt type
sleeve length
size
color
Price
103 products
View:  4896All|103 Products
Smartwool Women's Thermal Merino Rib Top
  • Black
  • Toasted Coconut Heather
  • Chalk Violet Heather

Smartwool Women's Thermal Merino Rib Top

$130.00

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

Smartwool Women's Thermal Merino Crew

$120.00

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

Smartwool Women's Thermal Merino Turtleneck Ribbed Sweater

$120.00

On Sale
Smartwool Thermal Merino Pattern Crew
  • Black Mountain Print
  • Laguna

Smartwool Thermal Merino Pattern Crew

$81.97

WAS: $110.00*

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

Smartwool Women's Thermal Merino ¼ Zip Pullover

$89.97-$120.00

WAS: $120.00*

On Sale
Smartwool Women's Thermal Merino Boxed 1/4 Zip
  • Black/Charcoal Heather

Smartwool Women's Thermal Merino Boxed 1/4 Zip

See Price in Cart

WAS: $125.00*

On Sale
Smartwool Men's Thermal Merino 1/4 Zip Pullover
  • Charcoal Heather
  • Black

Smartwool Men's Thermal Merino 1/4 Zip Pullover

See Price in Cart

WAS: $120.00*

On Sale
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

$81.97

WAS: $110.00*

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

Smartwool Women's Classic Thermal Merino Baselayer Long Sleeve Shirt

$85.97-$115.00

WAS: $115.00*

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

icebreaker Men's 125 ZoneKnit Merino Thermal Long Sleeve Shirt

$100.00

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

Smartwool Women's Intraknit Thermal Merino Crew Baselayer Top

$130.00

Smartwool Women's Classic Thermal Merino Baselayer Bottoms

Smartwool Women's Classic Thermal Merino Baselayer Bottoms

See Price in Cart

WAS: $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

$145.00

On Sale
Smartwool Men's Classic Thermal Merino Base Layer Bottoms
  • Deep Navy
  • Charcoal Heather
  • Black

Smartwool Men's Classic Thermal Merino Base Layer Bottoms

$85.97-$115.00

WAS: $115.00*

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

Smartwool Women's Intraknit Thermal Merino Pattern Baselayer Top

$96.97-$130.00

WAS: $130.00*

icebreaker Men's 125 ZoneKnit Merino Thermal Short Sleeve Shirt

icebreaker Men's 125 ZoneKnit Merino Thermal Short Sleeve Shirt

$90.00

On Sale
Smartwool Women's Intraknit Thermal 1/4 Zip
  • Black/White

Smartwool Women's Intraknit Thermal 1/4 Zip

See Price in Cart

WAS: $140.00*

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

Smartwool Men's Classic Thermal Merino Base Layer Crew Top

$85.97-$115.00

WAS: $115.00*

On Sale
Smartwool Men's Intraknit Thermal 1/4 Zip
  • Deep Navy
  • Winter Moss

Smartwool Men's Intraknit Thermal 1/4 Zip

See Price in Cart

WAS: $155.00*

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

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

$130.00

Turtle Fur Merino Wool Pipe Dream Neck Warmer
  • Nordic Snow

Turtle Fur Merino Wool Pipe Dream Neck Warmer

$50.00

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*

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

Outdoor Research Alpine Onset Merino 240 Sensor Liner

$33.97-$45.00

WAS: $45.00*

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

Smartwool Kids' Classic Thermal Merino Base Layer Crew

$64.95

On Sale
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

See Price in Cart

WAS: $120.00*

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

Smartwool Kids' Classic Thermal Merino Base Layer Bottom

$64.95

SmartWool Youth Classic Thermal ¼ Zip Base Layer
  • Rhythmic Red

SmartWool Youth Classic Thermal ¼ Zip Base Layer

$65.00

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

Hot Chillys Women's Clima-Wool Merino Bottom

See Price in Cart

WAS: $125.00*

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

$89.97-$120.00

WAS: $120.00*

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

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

$96.97-$130.00

WAS: $130.00*

On Sale
Smartwool Women's Intraknit Thermal Merino Baselayer Leggings
  • Black/White

Smartwool Women's Intraknit Thermal Merino Baselayer Leggings

$97.97

WAS: $130.00*

On Sale
Smartwool Women's Intraknit Thermal Colorblock 1/4 Zip
  • Black/Charcoal
  • Deep Navy

Smartwool Women's Intraknit Thermal Colorblock 1/4 Zip

See Price in Cart

WAS: $140.00*

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

Hot Chillys Men's Clima-Wool Merino Bottom

See Price in Cart

WAS: $125.00*

On Sale
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

$100.97

WAS: $135.00*

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

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

$240.00

icebreaker Women's 125 ZoneKnit Long Sleeve Thermal Crew
  • Jet Hthr/Blk/Mtro Hthr/Cb

icebreaker Women's 125 ZoneKnit Long Sleeve Thermal Crew

$125.00

Smartwool Merino 250 Long Neck Gaiter
  • Black

Smartwool Merino 250 Long Neck Gaiter

$35.00

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

icebreaker Women's MerinoFine Long Sleeve Roll Neck Shirt

$220.00

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

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

$89.97

WAS: $120.00*

On Sale
Smartwool Women's Merino 250 Baselayer Top

Smartwool Women's Merino 250 Baselayer Top

See Price in Cart

WAS: $115.00*

Callaway Men's Thermal Merino 1/4 Zip Golf Pullover
  • Black Onyx

Callaway Men's Thermal Merino 1/4 Zip Golf Pullover

$120.00

On Sale
Smartwool Women's Merino 250 Pattern Crewneck Baselayer Top
  • Honey Gold Dot
  • Festive Fuschia Mtnscape
  • Light Gray Mountain Scape

Smartwool Women's Merino 250 Pattern Crewneck Baselayer Top

$82.97-$110.00

WAS: $110.00*

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 Intraknit Merino 200 1/4 Zip
  • Deep Navy
  • Black/White

Smartwool Men's Intraknit Merino 200 1/4 Zip

$140.00

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 Merino 250 Pattern 1/4 Zip Baselayer Shirt
  • Jade Marble

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

$115.00

SmartWool Merino 150 Base Layer Long Sleeve Shirt
  • Black

SmartWool Merino 150 Base Layer Long Sleeve Shirt

$90.00

On Sale
Smartwool Women's Merino 250 Pattern Baselayer Bottom
  • Blueberry Hill Mtn Scape

Smartwool Women's Merino 250 Pattern Baselayer Bottom

$82.97

WAS: $110.00*

icebreaker Women's Merino Blend 200 Realfleece Descender Long Sleeve Zip Hoodie
  • Graphite/Black/Cb

icebreaker Women's Merino Blend 200 Realfleece Descender Long Sleeve Zip Hoodie

$180.00

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

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

See Price in Cart

WAS: $90.00*

SmartWool Women's Merino 150 Base Layer Bottoms
  • Black

SmartWool Women's Merino 150 Base Layer Bottoms

$90.00

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

On Sale
Smartwool Men's Merino 250 Baselayer Crewneck Shirt

Smartwool Men's Merino 250 Baselayer Crewneck Shirt

See Price in Cart

WAS: $115.00*

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

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

$89.97-$120.00

WAS: $120.00*

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

Smartwool Youth Merino 250 Pattern Crewneck Baselayer Top

$60.00

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

Smartwool Men's Merino 250 Baselayer Bottom

$85.97-$115.00

WAS: $115.00*

Smartwool Women's Merino Sport Moto Leggings
  • North Woods

Smartwool Women's Merino Sport Moto Leggings

$100.00

Smartwool Women's Intraknit Merino Tech ¼ Zip Jacket
  • Black

Smartwool Women's Intraknit Merino Tech ¼ Zip Jacket

$170.00

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*

Smartwool Youth Merino 250 Baselayer Bottom
  • Power Pink

Smartwool Youth Merino 250 Baselayer Bottom

$49.97-$60.00

WAS: $60.00*

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

On Sale
Smartwool Women's Merino 250 Baselayer Leggings

Smartwool Women's Merino 250 Baselayer Leggings

$85.97-$115.00

WAS: $115.00*

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*

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

1
2

You may also like...

On Sale
Smartwool Women's Merino SS Tee

Smartwool Women's Merino SS Tee

$79.95

WAS: $80.00*

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

Smartwool Men's Merino SS Tee

Smartwool Men's Merino SS Tee

$80.00

SmartWool Women's Perfect Crew Short Sleeve T-Shirt

SmartWool Women's Perfect Crew Short Sleeve T-Shirt

$60.00

SmartWool Women's Intraknit Active Base Layer Long Sleeve Shirt
  • Black

SmartWool Women's Intraknit Active Base Layer Long Sleeve Shirt

$110.00

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

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

$60.00

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

Smartwool Women's Merino Sport 120 Hoodie

$79.95

Continue browsing

Merino Thermal TopMerino Wool Long UnderwearThermal Merino Base LayerMerino Wool BottomsMerino Wool Midweight Base LayerMerino Wool Base LayerMerino Wool Lightweight Base LayerMerino Wool Athletic ApparelCold Weather Merino Wool Base LayerMerino Wool Base Layer ClothingMerino Base LayerMerino Midweight Base LayerMerino Wool Cycling Base LayerMerino Base Layer ClothingLong Sleeve Merino Wool Base LayerMerino Lightweight Base LayerSmartwool Thermal Merino Base LayerMerino Wool Neck GaiterSmartwool Thermal TopThermolite Insulated JacketsMerino Cycling Base LayerCold Weather Thermal ShirtsWinter Thermal TopSmartwool Merino Wool Base LayerThermal JerseysThermal TightsWinter Fleece Neck WarmerWarm Neck WarmersWinter Warm BlanketsThermal Scarves