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Madison Isoler Merino Winter Cap

A perfect under helmet accessory for cold weather riding.
Shaped to work underneath a helmet with minimal seam irritation
Unlike man-made fibres Merino wool retains its thermal properties when it’s wet to better regulate the body’s temperature
Peaked brim keeps the sun or rain away from your face
Fold up rear panel allows you to expose the ears if you begin to overheat
Limited lifetime warranty