When you’re in the depths of winter, the Optimus cap is the perfect under helmet accessory
Key Features:
- Shaped to work underneath a helmet with minimal seam irritation
- The windproof fabric keeps the chill off, and the fabric membrane is waterproof preventing you from soaking through in wet conditions
- 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













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