Skateboard helmets; football helmets; helmets for motorcyclists; safety caps, namely, safety helmets; helmets for use in sports; helmets for American football; balaclavas for protection against accidents; headgear being protective helmets; headgear being protective helmets for protection against injury; headgear being protective helmets for protection against accidents; pressure measurement sensors; portable measuring devices for the measurement of vital data, except for medical purposes, nam...