The Tectal is a trail, enduro, and all-mountain bike helmet with enhanced lightweight protection and ventilation. The well-ventilated Tectal has been specifically designed for aggressive trails and enduro racing and features the aramid fiber-reinforced helmet bridge system from POC's proven and award-winning Trabec helmet. The reinforced EPS inner lining offers a high level of protection, and the one-piece shell construction, introduced in POC's groundbreaking Octal road bike helmet, further enhances the safety features and structural integrity of the helmet while keeping the weight low. The Tectal provides more protection than traditional mountain bike helmets and features a highly efficient ventilation design that has been optimized and tested in wind tunnel experiments. The lightweight size adjustment system ensures a comfortable and secure fit.