Women's Classic All-Season Merino Base Layer Long Sleeve
Pistachio
Black
Natural
Light Gray Heather
Twilight Blue
Laguna Blue
Carnival
Fox Brown
(264)
Brand New
Women's Classic All-Season Merino Base Layer Long Sleeve
$90.00
Women's Classic All-Season Merino Base Layer Bottom
Twilight Blue
Fox Brown
Black
Light Gray Heather
(80)
Brand New
Women's Classic All-Season Merino Base Layer Bottom
$90.00
Women's Classic All-Season Merino Base Layer 1/4 Zip
Carnival
Twilight Blue
Black
Light Gray Heather
(75)
Online Exclusive Colors
Women's Classic All-Season Merino Base Layer 1/4 Zip
$95.00
Women's Classic All-Season Merino Plant-Based Dye Base Layer Long Sleeve
Light Indigo Tie Dye
Canary
Black Tie Dye
Light Copper Tie Dye
Dark Argyle Purple
(31)
Brand New
Women's Classic All-Season Merino Plant-Based Dye Base Layer Long Sleeve
$90.00
Women's Classic All-Season Merino Plant-Based Dye Base Layer Bottom
Black Tie Dye
(9)
Online Exclusive Colors
Women's Classic All-Season Merino Plant-Based Dye Base Layer Bottom
$90.00
Women's Classic Thermal Merino Base Layer Crew
Ultra Violet
Bleached Aqua Heather
Sunset Coral Heather
Twilight Blue Heather
Charcoal Heather
Black
Festive Fuchsia Heather
Honey Gold Heather
Blueberry Hill Heather
Capri Blue Heather
Black Cherry Heather
Neptune Blue Heather
(403)
New Colors
Women's Classic Thermal Merino Base Layer Crew
$66.00 -  $110.00
Women's Classic Thermal Merino Base Layer Bottom
Ultra Violet
Twilight Blue Heather
Black
Charcoal Heather
Blueberry Hill Heather
Light Gray Heather
Neptune Blue Heather
(292)
New Colors
Women's Classic Thermal Merino Base Layer Bottom
$66.00 -  $110.00
Women's Intraknit™ Active Base Layer Long Sleeve
Copper
Black
Lead
Ultra Violet
(7)
Brand New
Women's Intraknit™ Active Base Layer Long Sleeve
$110.00
Women's Intraknit™ Active Base Layer Bottom
Copper
Lead
Black
Ultra Violet
(7)
Brand New
Women's Intraknit™ Active Base Layer Bottom
$110.00
Women's Classic All-Season Merino Base Layer Long Sleeve Plus
Carnival
Black
Natural
Light Gray Heather
Twilight Blue
Pistachio
(4)
Brand New
Women's Classic All-Season Merino Base Layer Long Sleeve Plus
$90.00
Women's Classic All-Season Merino Base Layer Bottom Plus
Twilight Blue
Black
Light Gray Heather
(7)
Brand New
Women's Classic All-Season Merino Base Layer Bottom Plus
$90.00
Women's Classic Thermal Merino Base Layer Pattern 1/4 Zip
Ultra Violet Stripe
Honey Gold Dot
Black Floral
Jade Marble
Blueberry Hill Marble
Blueberry Hill Mountain Scape
Festive Fuchsia Mountain Scape
Light Gray Mountain Scape
Black Stripe
Ash Heather Stripe
Twilight Blue Marble
Black Dot
Black Cherry Dot
Twilight Blue Floral
(316)
New Colors
Women's Classic Thermal Merino Base Layer Pattern 1/4 Zip
$69.00 -  $115.00
Women's Classic Thermal Merino Base Layer 1/4 Zip
Ultra Violet
Black
Twilight Blue Heather
Sunset Coral Heather
Bleached Aqua Heather
Charcoal Heather
Blueberry Hill Heather
Black Cherry Heather
Honey Gold Heather
(432)
New Colors
Women's Classic Thermal Merino Base Layer 1/4 Zip
$69.00 -  $115.00
Women's Classic Thermal Merino Base Layer Pattern Crew
Ultra Violet Stripe
Festive Fuchsia Mountain Scape
Twilight Blue Marble
Black Dot
Black Cherry Dot
Black Stripe
Ash Heather Stripe
Light Gray Mountain Scape
Blueberry Hill Mountain Scape
Blueberry Hill Marble
Black Floral
Twilight Blue Floral
(237)
New Colors
Women's Classic Thermal Merino Base Layer Pattern Crew
$66.00 -  $110.00
Women's Classic Thermal Merino Base Layer Pattern Bottom
Light Gray Mountain Scape
Jade Marble
Festive Fuchsia Mountain Scape
Blueberry Hill Mountain Scape
Blueberry Hill Marble
Black Dot
Black Floral
Twilight Blue Floral
(127)
Women's Classic Thermal Merino Base Layer Pattern Bottom
$66.00 -  $110.00
Women's Merino Classic All-Season Merino Plant-Based Dye Bottom
Black Marble Wash
Indigo Blue
(8)
Women's Merino Classic All-Season Merino Plant-Based Dye Bottom
 $85.00  $51.00
Women's Classic All-Season Plant-Based Dye Merino Base Layer Long Sleeve
Summer Sound Cherry Mango Wash
Indigo Blue
Summer Sound Purple Wash
(10)
Women's Classic All-Season Plant-Based Dye Merino Base Layer Long Sleeve
 $85.00  $51.00
Women's Intraknit™ Thermal Merino Base Layer Bottom
Black Cherry
North Woods
Black-White Black-White
Pomegranate
Blueberry Hill
(39)
Women's Intraknit™ Thermal Merino Base Layer Bottom
$75.00 -  $125.00
Women's Intraknit™ Thermal Merino Base Layer Crew
Black Cherry
North Woods
Blueberry Hill
Black-White Black-White
Light Gray Heather-White Light Gray Heather-White
(57)
Women's Intraknit™ Thermal Merino Base Layer Crew
$75.00 -  $125.00
Women's Intraknit™ Thermal Max Merino Base Layer Bottom
Black Cherry
Black
(52)
Women's Intraknit™ Thermal Max Merino Base Layer Bottom
$130.00
Women's Classic Thermal Merino Base Layer Colorblock 1/4 Zip
Black Cherry Heather
Black
Bleached Aqua Heather
(60)
Women's Classic Thermal Merino Base Layer Colorblock 1/4 Zip
 $120.00  $72.00
Women's Classic Thermal Merino Base Layer 1/2 Zip Hoodie
Honey Gold Heather
Charcoal Heather
Blueberry Hill Mountain Scape
Black Cherry Heather
(80)
Online Exclusive Colors
Women's Classic Thermal Merino Base Layer 1/2 Zip Hoodie
$84.00 -  $140.00
Women's Classic All-Season Merino Base Layer Bottom
Blue Spruce
Black
Light Gray Heather
(80)
Women's Classic All-Season Merino Base Layer Bottom
 $85.00  $51.00
Women's Intraknit™ Thermal Merino Base Layer Pattern Crew
Arcadian Green-Bleached Aqua
Black-White Black-White
Pomegranate
Bleached Aqua
Blueberry Hill-Baltic Sea
Orange Rust Heather
Pomegranate-Wild Salmon
(26)
Women's Intraknit™ Thermal Merino Base Layer Pattern Crew
 $120.00  $75.00
SEE MORE

Women's wool base layers are just what you need to stay active in all kinds of weather. Stock up on women's base layers from tanks and tees to long sleeve shirts and full-length pants in a variety of styles. Whether you need to warm up or cool off, Merino base layers help regulate your core temperature, staying soft and dry next to your skin. Features like flatlock seams that help prevent chafing, as well as the natural breathability of Merino wool, add up to extraordinary comfort.