2nd Skull – Protective Skull Cap

2nd Skull
The 2nd Skull® Protective Skull Cap is designed to fit comfortably under any helmet by creating an independent layer between the head and helmet, or as a stand-alone in non-helmet activities. It features thin, 2 millimeter XRD® impact-absorbing technology for superior protection. The material is flexible at rest, but can instantaneously harden under sudden pressure, thus helping to mitigate the effects of sudden impacts.

The moisture-wicking fabric offers a comfortable fit that conforms to your head while keeping you cool.

2nd Skull provides game-changing protection against impacts and has improved the performance of all helmets it has been tested with. Focus on your performance and reduce the risk with the 2nd Skull® Protective Skull Cap.


  • Protective, impact-absorbing technology
  • Designed to fit comfortably under most helmets, or worn alone
  • Thin, lightweight design
  • Moisture-wicking fabric to keep you dry
  • Anti-microbial treatment to help prevent odor
  • Permitted for high school use in multiple sports and activities
  • Hand wash only
  • Made in the U.S.A.
  • Fabric: 20% Spandex, 80% Polyester


Products are available for DOD, Federal, State and Local Government Agency ordering.
ADS cannot quote or fulfill personal orders.

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Thank you for your interest in ADS. Unfortunately, we cannot process your request. ADS does not sell to sole proprietors or ship to residential addresses. Please contact Tactical Distributors at 1.866.916.6905 or info@tacticaldistributors.com for further assistance.

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