2nd Skull® products have a thin, soft, flexible and breathable layer of XRD® that delivers impact protection. The special urethane molecules are soft at rest but harden upon impact, absorbing 90% of the energy. The 2nd Skull® CAP is intended for any sport or activity where a helmet is required, such as football, hockey, or baseball. The 2nd Skull® BAND is for any sport or activity where no helmet is required and in sports such as soccer or basketball. 2nd Slull protective headgear can reduce impact by up to 35% among several contact sports or activities. 2nd Skull products are proudly made in the USA.