Seirus Thermax Skull Liner
Where to Buy
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Here's what other sites are saying:
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(R) polyester with a bit of Lycra(R) 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 design-chose from exposed contrast stitching or solid black.