Seer Helmets' S1606 helmet is more than 16oz lighter and costs less than any other Seer helmet. The S1606 features a lightweight advanced composite shell and dual density liner. Front and rear air vents bring fresh air in and flushes hot, humid air out. Multiple outer shell, inner liner, ear roll, and comfort liner sizes allow for an indvidual, truly custom fit regardless of head and face shape or size. The S1606 meets DOT FMVSS218 and SNELL M2010 standards.