Designed to provide more coverage at temples and back of head 360° size and strap adjustment system for the most precise and secure fit Includes an aramid bridge system for improved structural integrity and a reinforced EPS liner The unibody shell construction supports the integrity of the helmet while ensuring the weight remains low Tectal Race SPIN delivers lightweight, reliable protection that will keep you cool headed as you push your boundaries on the trail Tectal Race SPIN helmet is built on POC's whole-helmet approach to design and construction in order to deliver superior levels of comfort, fit and performance.