The Dynamax Quick Headliner from Seirus Innovations is a skull cap with built-in balaclava. Made from Seirus' exclusive Dynamax - dual density micro denier Thermax this headliner is thin, warm, wicking, wind-blocking and stretchy. 85% Polyester/15% Spandex Imported Skull cap with built-in balaclava Seirus' exclusive Dynamax-dual density, micro Denier Thermax Thin, warm, wicking, wind-blocking, stretchy More stretch. More warmth. More wicking. More wind block. Still thin.
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