Smartwool Men's Classic Thermal Merino Base Layer 1/4 Zip 2026 Charcoal Heather Size:XL and needle valve compatibility plus

and needle valve compatibility plus a built-in light round out a portable design that fits easily in a jersey pocket or in-frame storage

and Dura Cap Sidewalls ensure agile handling

SHELL - Hybrid construction: This hybrid helmet construction pairs an injected ABS upper shell and a lightweight in-mold lower shell to allow extra ventilation and Airflow Concept integration

Introducing the Ridge Hood

Smartwool Men's Classic Thermal Merino Base Layer 1/4 Zip 2026 Charcoal Heather Size:XL and needle valve compatibility plusHeavyweight interlock knit Merino sets the foundation for cold weather performance, delivering natural temperature regulation, moisture management, and odor resistance. The Smartwool Mens Classic Thermal Merino Base Layer 1 4 Zip uses 100% responsibly sourced Merino wool, making it one of the brands warmest base layer tops for demanding winter conditions. A slim fit follows the body closely for efficient heat retention and easy layering, while