The FN1 is an UltraLight Performance Headgear from Full 90 that is designed with Dupont Coolmax material to keep your head cool along with advanced temporal padding extended occipital coverage and total cranial contour design that all work to provide the best low-profile padding for your head. The advanced Trufit 2 system is a seven-point adjustment system for the best and safest fit. The headgear will naturally conform to your head and will become more comfortable after several wears.