New to our innovative Intraknit™ line is the Men’s Intraknit™ Thermal Merino Base Layer 1/4 Zip. This Smartwool® base layer is 3D-mapped for a near-custom fit and freedom of movement. Its engineered construction helps enhance your performance with a lighter weight and cleaner finish. If you’re looking for base layer clothing for cold weather, this one uses Merino Sport yarn that combines the power and benefits of Merino wool with the durability and fast dry times of polyester—creating the ultimate performance-ready top for all of your high-energy activities.
Base Layer
Smartwool Base Layers
Responsibly sourced, naturally performing Merino wool—helping you stay dry from sweat, resistant to odors, and comfortable at the right body temperature 365 days a year.
Features
- Our slim fit is intended to follow the contours of the body
- Featuring Intraknit™ technology: Insulation, articulation, and ventilation are seamlessly integrated to help with movement and comfort
- Seamlessly knit mesh ventilation
- 3D mapping results in near custom fit and freedom of movement
- 8.25″ (21 cm) center-front zipper
- Made in India: 56% Merino Wool, 44% Polyester. Exclusive of Decoration.
- SW002824
Care
- Machine Wash Cold Gentle Cycle
- Wash With Like Colors
- Do Not Bleach
- Dry Flat
- Cool Iron As Needed
- Do Not Iron Decoration
- Do Not Dry Clean
Intraknit™ Thermal
Our most advanced performance base layer has gender-specific 3D-knit to maximize ventilation and thermoregulation. Designed for high-energy activities in cool to cold weather.














































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