Adjustable sizing strap with cord lock so that one size fits most Brass screen vents Built in internal map pocket Adjustable drawstring chin strap Built to U.S. MIL-SPEC but with an adjustable sizing strap that allows a custom fit.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }