Seirus Thermax Skull Liner
Ideal for cool-weather starts, slip the Seirus Thermax skull liner beneath your helmet or pack it as a minimalist beanie for light and fast adventures.
- Ultra-thin Thermax® polyester with a bit of Lycra® spandex stretches to fit, wicks away moisture and dries quickly to keep you warm
- Flatseam construction and 4-way stretch improves comfort
- The Seirus Thermax skull liner features a reversible designchose from exposed contrast stitching or solid black
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