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Clothing    Hats & Headbands

Castelli Thermo Skully

The Castelli Thermo Skully is probably the perfect under helmet cold weather cap. Thin but effective Thermoflex fabric retains heat without adding a lot of bulk.


  • Thermoflex is warm, soft, and stretchy
  • Raw cut edge lies flat and doesn't bunch under helmet
Reg Price $29.99
Item #: 812100