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The Seirus Dynamax™ Contoured Headband is a modern upgrade to the classic winter headband, delivering more warmth, more wicking, more wind block, and more comfort—all in an ultra‑thin, lightweight profile. Built with Seirus’ exclusive dual‑density, micro‑denier Thermax® fabric, it provides impressive insulation while staying breathable and stretchy. The contoured shape offers full ear coverage, fleece ear inserts add extra softness and warmth, and the UPF 50+ rating provides reliable sun protection. With Dynamax™, the feel is unreal.
Because you want full ear coverage and serious performance without bulk. The Dynamax Contoured Headband blends thin, powerful warmth with a contoured, fleece‑enhanced fit that stays comfortable during any cold‑weather activity.


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