Black Diamond Thermal undergarment Coefficient LT

A technical top designed for high-exertion activities, the Coefficient LT Crew is a lighter, stretchier version of our successful Coefficient Fleece model. It's ideal for long approaches, ski touring or mountain running that require extra protection. Polartec® Power Grid® fleece fiber with a gridded inner face enhances anti-perspiration performance and ensures increased breathability.
Product Features
Primary fabric is Bluesign® approved.
Elastic thumb loops for easy layering and hand protection.
Underarm gusset for mobility
Flatlock seams
Measurement at center back: 27 1/4".
Fit: Slim