The RibCap has anti-shock ribs for absorbing the impact

RibCap

Ribcap is setting new standards of headprotection.The lines Marley, Janis and Hendrix are avalible in an exclusive Dyneema version. Dyneema is a firm, tear- resistant synthetic fibre which due to it's special qualities is often used for protective work clothing. The anti-shock ribs, made of a high quality and breathable material (d3o), are absorbing the impact. d3o Mesh is a perforated textured sheet which has been specifically designed for comfort and breathability for applications requiring good flexure and medium levels of impact protection and is suitable for feet, body and head applications.

Source: ribcap.comAdded: 27 February 2007