Professional performance that can be used on the field and is the thinnest in the industry x 2.5 inches (63 mm) for a wide variety of uses, with excellent storage and portability, this emergency helmet can be used during disasters, as well as for normal construction sites. ■ Can be adjusted to a wide range of sizes, from children to adults. ■ One action can be assembled in 1 second. ■ Interchangeable internal parts. Standards: Protective hat standard for flying falls, and protects against falls.