A classic, all-around 100% recycled polyester baselayer. The smooth, soft face makes for easy layering. Hollow-core yarns and a diamond-grid back trap warm air, wick moisture and dry fast. HeiQ® Pure odor control keeps things fresh. Fair Trade Certified™ sewn.

FEATURES

• The Most Versatile Baselayer | Smooth, soft face makes for easy layering; HeiQ® Pure odor control keeps things fresh
• Zip-Neck Styling | Zip-neck styling with internal neck tape for added comfort; locker loop for hang drying
• Raglan Sleeve Construction | Raglan shoulder seams allow freedom of movement, with full underarm gusset for range of motion and chafe-free comfort
• Easy Venting Front Zipper | Long center-front zipper vents body heat and is backed by kissing welts for low-bulk comfort next to skin
• Low-Profile Thumb Loops | Elastic thumb loops for secure hand coverage
• Comfortable Fabric | Fabric’s diamond-grid pattern next to skin provides warmth and breathability and wicks moisture
• Supporting the People Who Made This Product | Fair Trade Certified™ sewn
• Country of Origin | Made in Sri Lanka.
• Weight | 170 g (6 oz)

SPECS

• 4.3-oz (147-g) 100% recycled polyester diamond-grid double knit with HeiQ® Pure odor control
• Fabric is certified as bluesign® approved
• Fair Trade Certified™ sewn

A classic, all-around 100% recycled polyester baselayer. The smooth, soft face makes for easy layering. Hollow-core yarns and a diamond-grid back trap warm air, wick moisture and dry fast. HeiQ® Pure odor control keeps things fresh. Fair Trade Certified™ sewn.

FEATURES

• The Most Versatile Baselayer | Smooth, soft face makes for easy layering; HeiQ® Pure odor control keeps things fresh
• Zip-Neck Styling | Zip-neck styling with internal neck tape for added comfort; locker loop for hang drying
• Raglan Sleeve Construction | Raglan shoulder seams allow freedom of movement, with full underarm gusset for range of motion and chafe-free comfort
• Easy Venting Front Zipper | Center-front zipper vents body heat and is backed by kissing welts for low-bulk comfort next to skin
• Low-Profile Thumb Loops | Elastic thumb loops for secure hand coverage
• Stretchy Comfort | Stretch for added comfort and improved fit during movement
• Supporting the People Who Made This Product | Fair Trade Certified™ sewn
• Country of Origin | Made in Sri Lanka.
• Weight | 204 g (7.2 oz)

SPECS

• 4.3-oz (147-g) 100% recycled polyester diamond-grid double knit with HeiQ® Pure odor control
• Fabric is certified as bluesign® approved
• Fair Trade Certified™ sewn

Meet the better-than-ever Men's Classic Thermal Merino Base Layer Crew. We've updated this 100% Merino wool fan-favorite with new colors and a new fit to improve functionality while enhancing aesthetics. Shoulder panels eliminate top shoulder seams and a flatlock seam construction helps prevent chafing. Add one of our best base layers for cold weather to your winter wardrobe and experience the difference the next time you go skiing, hiking, climbing, or biking.

FEATURES

• Slim Fit
• 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance
• Fit updated to improve functionality while enhancing aesthetics
• Shoulder panels eliminate top shoulder seams
• Flatlock seam construction designed to minimize chafing
• Knit in Vietnam: 100% Merino Wool
• Garment Weight: 276 g = 9.74 oz
• Style: SW016349

CARE

• Machine Wash Warm Gentle Cycle.
• Do Not Iron Decorations.
• Do Not Bleach
• Tumble Dry Low
• Cool Iron As Needed
• Do Not Dry Clean
• Wash With Like Colors

Meet the new and improved Women's Merino 250 Base Layer Crew. This updated 100% Merino wool fan-favorite has new color options and an enhanced fit to improve functionality while elevating aesthetics. The addition of shoulder panels and its flatlock seam construction helps prevent chafing and increases your comfort level. Add one of our best base layers for cold weather to your winter wardrobe and experience the difference the next time you go skiing, hiking, climbing, or biking.

BENEFITS

Merino 250 | This heavier, soft, 100% Merino wool fabric offers breathable warmth, moves sweat away from the body, and provides next-to-skin comfort in colder conditions

FEATURES

• Slim Fit
• 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance
• Fit updated to improve functionality while enhancing aesthetics for a range of body shapes
• Back body seam wraps to front for body-enhancing fit
• Crew neck with raglan sleeves
• Flatlock seam construction designed to minimize chafing
• Knit in China: 100% Merino Wool
• Garment Weight: 218 g = 7.69 oz
• Style: SW016369

A classic, all-around polyester baselayer with 100% recycled content. The smooth, soft face makes for easy layering. Hollow-core yarns and a diamond-grid back trap warm air, wick moisture and dry fast. HeiQ® Fresh durable odor control ensures you're welcome among friends all day long. Fair Trade Certified™ sewn.

FEATURES


MATERIALS

• 5.1-oz (147-g) 100% recycled polyester diamond-grid double knit with HeiQ® Fresh durable odor control and 50+ UPF sun protection
• Fabric is certified as bluesign® approved
• Fair Trade Certified™ sewn

Style No. 44487

100% Merino. 100% capable. Smartwool's Women's Merino Base Layer Bottom is always ready for what's ahead and what's next. With a fit updated to improve functionality while enhancing aesthetics for a range of body shapes and a flatlock seam construction designed to minimize chafing, comfort is never in question. Get yourself a pair or two of our best base layer pants and conquer the cold with more confidence than ever.

FEATURES

• Slim Fit
• 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance
• Merino-covered elastic waistband
• Flatlock seam construction designed to minimize chafing
• Fit updated to improve functionality while enhancing aesthetics for a range of body shapes
• Size M inseam: 30.5" (77.5 cm)
• Knit in Vietnam: 100% Merino Wool
• Garment Weight: 208 g = 7.34 oz
• Style: SW019242

CARE

• Machine Wash Warm Gentle Cycle.
• Do Not Bleach.
• Tumble Dry Low.
• Cool Iron As Needed.
• Do Not Dry Clean.
• Wash With Like Colors.
• Do Not Iron Decorations.

• Our Most Versatile Baselayer: Smooth, soft face makes for easy layering, and HeiQ® Fresh durable odor control keeps things fresh
• Self-Fabric Crewneck: Classic crew styling with internal neck tape for added comfort; locker loop for hang drying
• Raglan Sleeve Construction: Raglan shoulder seams allow freedom of movement, with full underarm gusset for range of motion and chafe-free comfort
• Internal Diamond Grid Pattern: Fabric’s diamond-grid pattern next to skin provides warmth and breathability and wicks moisture
• Low-Profile Thumb Loops: Elastic thumb loops for secure hand coverage
• Stretchy Comfort: Stretch for added comfort and improved fit during movement
• Fair Trade Certified™ Sewn: Fair Trade Certified™ sewn
• Country of Origin: Made in Sri Lanka.
• Weight: 176 g (6.2 oz)

• Solids and prints: 4.3-oz (147-g) 100% recycled polyester diamond-grid double knit
• Cross-dyes: 4.3-oz (147-g) 100% polyester (50% recycled) diamond-grid double knit
• All with HeiQ® Fresh durable odor control and 50+ UPF sun protection
• Fabric is certified as bluesign® approved
• Fair Trade Certified™ sewn

With new patterns, a fresh look, and even more comfort, the Men's Classic Thermal Merino Base Layer Pattern Crew is being its best self. We've updated this 100% Merino wool fan-favorite with new colors and a new fit to improve functionality while enhancing aesthetics. Shoulder panels eliminate top shoulder seams and a flatlock seam construction helps minimize chafing. Add one of our best base layers for cold weather to your winter wardrobe and experience the difference the next time you go skiing, hiking, climbing, or biking.

FEATURES

• Slim Fit
• 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance
• Fit updated to improve functionality while enhancing aesthetics
• Shoulder panels eliminate top shoulder seams
• Flatlock seam construction designed to minimize chafing
• Knit in Vietnam: 100% Merino Wool
• Garment Weight: 276 g = 9.74 oz
• Style: SW016351

The updated Smartwool Men's Merino 250 Base Layer Bottom to bring you a better fitting, more functional tight. The technical benefits of 100% Merino wool will help you keep your game at a high level for longer. And Smartwool's heaviest weight wool fabric will help keep you warm and comfortable as you ski, run, and hike the day away.

BENEFITS

Merino 250
This heavier, soft, 100% Merino wool fabric offers breathable warmth, moves sweat away from the body, and provides next-to-skin comfort in colder conditions

FEATURES

• Slim Fit
• 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance
• Fit updated to improve functionality while enhancing aesthetics
• Merino-covered elastic interior waistband and traditional fly design
• Flatlock seam construction designed to minimize chafing
• Size M inseam: 30" (76 cm)
• Knit in Vietnam: 100% Merino Wool
• Garment Weight: 228 g = 8.04 oz
• Style: SW016361

A classic, all-around polyester baselayer, with 50-100% recycled content. The smooth, soft face makes for easy layering. Hollow-core yarns and a diamond-grid back trap warm air, wick moisture and dry fast. HeiQ® Fresh durable odor control keeps things fresh. Fair Trade Certified™ sewn.

FEATURES

Patagonia's Most Versatile Baselayer
Smooth, soft face makes for easy layering, and HeiQ® Fresh durable odor control keeps things fresh

Self-Fabric Crewneck
Classic crew internal neck tape for added comfort; locker loop for hang drying

Raglan Sleeve Construction
Raglan shoulder seams allow freedom of movement, with full underarm gusset for range of motion and chafe-free comfort

Internal Diamond Grid Pattern
Fabric’s diamond-grid pattern next to skin provides warmth and breathability and wicks moisture

Low-Profile Thumb Loops
Elastic thumb loops for secure hand coverage

Stretchy Comfort
Stretch for added comfort and improved fit during movement

Fair Trade Certified™ Sewn
Fair Trade Certified™ sewn

Country of Origin
Made in Sri Lanka.

Weight
153 g (5.4 oz)

MATERIALS

• Solids and prints: 4.3-oz (147-g) 100% recycled polyester diamond-grid double knit
• Cross-dyes: 4.3-oz (147-g) 100% polyester (50% recycled) diamond-grid double knit
• All with HeiQ® Fresh durable odor control and 50+ UPF sun protection
• Fabric is certified as bluesign® approved
• Fair Trade Certified™ sewn

Style No. 44437

A classic, all-around polyester baselayer with 100% recycled content. The smooth, soft face makes for easy layering. Hollow-core yarns and a diamond-grid back trap warm air, wick moisture and dry fast. HeiQ® Fresh durable odor control keeps things fresh. Fair Trade Certified™ sewn.

FEATURES

• Our Most Versatile Baselayer Smooth, soft face makes for easy layering, and HeiQ® Fresh durable odor control keeps things fresh
• Comfortable Elastic Waist Soft, brushed, fast-drying elastic sewn into wide waistband for added next-to-skin comfort and improved fit; locker loop for hang drying
• Internal Diamond Grid Pattern Fabric’s diamond-grid pattern next to skin provides superior warmth, breathability and moisture-wicking performance
• Gusseted Crotch Gusseted crotch for comfort and unimpeded mobility
• Flatlock Seam Construction Flatlock seams to minimize chafing
• Stretchy Comfort Stretch for added comfort and improved fit during movement
• Fair Trade Certified™ Sewn Fair Trade Certified™ sewn
• Country of Origin Made in Sri Lanka.
• Weight 156 g (5.5 oz)

MATERIALS

• Solids and prints: 4.3-oz (147-g) 100% recycled polyester diamond-grid double knit
• Cross-dyes: 4.3-oz (147-g) 100% polyester (50% recycled) diamond-grid double knit
• All with HeiQ® Fresh durable odor control and 50+ UPF sun protection
• Fabric is certified as bluesign® approved
• Fair Trade Certified™ sewn

Style No. 44492