ALK 13 Helium is a protective helmet dedicated to extreme sports and considered the lightest
market in its category. It weighs in fact only 280 grams, an insignificant weight obtained thanks to
to the use of materials that are as light as they are resistant, assembled using innovative technology.
It is intended to protect the skull against violent shocks, in particular those caused by falls and
clashes.
Size correspondence:
Size S/M: 52 to 55 cm.
Size L/XL: 55 to 59 cm.
