Castelli Pro Thermal Skully (Red) (Universal Adult)

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Castelli Pro Thermal Skully Description:

The Castelli Pro Thermal Skully is made for warmth with excellent wicking while minimizing bulk under your helmet. This simple helmet liner has a raw-cut edge so it doesn't interfere with the straps or helmet cage, while the Thermoflex fabric is surprisingly warm and wicks away moisture.


  • Thermoflex is warm, soft, and stretchy
  • Flat-lock stitching
  • Contoured to cover ears
  • Raw-cut edge lies flat and doesn't bunch under helmet
  • Reflective detailing on back


  • Season: Cool Weather
  • Application: -
  • Material: Synthetic
  • Visibility: Reflective
  • Color: Red

This product was added to our catalog on October 28, 2020

Devin Holmes
Verified Owner
Wednesday, Jan 25 2023 (10 months ago)
Castelli Pro Thermal Skully (Red) (Universal Adult)
One of the best skull caps, very good for the cold weather. Fits well around the ears and doesn't pop up like some others will do. Good fit.