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Giro Ambient Skull Cap

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The Ambient Skull Cap from Giro is ideal for wet and cold weather cycling with its ear flaps, micro-brim, and wind shielding front panel. Plush fleece lines the inside of this cap for ride-long comfort and warmth. Smart Seams help the cap lay flush against the skull, eliminating hot spots and pressure points that can result from certain helmet-cap combinations. Equipped with multi-faceted water repellent DWR, this cap fights water infiltration while simultaneously transporting interior moisture to the surface for rapid evaporation.

  • Fleece-lined.
  • Wind stopping front panel.
  • Ear flaps.
  • Micro-brim w/ reflective trim.
  • Durable Water Repellent (DWR) treatment.
  • Smart Seams.


  • Small / Medium: 53 – 58 cm.
  • Large / X-Large: 59 – 65 cm.
Ordered by Most Relevant First
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Reviewed 12/22/2017
by Anonymous
Daily Commuter
Buffalo NY
Value Rating
Overall Rating
Good Cap

This cap is really good - I use it everyday on my winter commuting rides. I covers my ears and the small brim is good as well. It conforms well to my head and fits snug, but not too tight.

I had an initial concern that it would be either too bulky or not warm enough. Neither was the case. I am surprised at home warm it is for being so thin, but when the temperature drops below 15 F, I put a balaclava over it and I am still able to get my helmet on.

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Reviewed 1/25/2018
by Eamon
Overall Rating
Dry and warm ears

This hat rocks. It was a replacement for a PI thermal hat that was out of stock. I love the the way the hat wicks away moisture and the brim keeps the rain off of my face. I rode 40 miles this past Sunday in a cold rain and my head stayed dry and warm. If only it could protect me from the spray off the wheel in front of me.

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