The phrase "different helmets" refers to various types or styles of protective headgear that people wear depending on their specific needs or activities. Full definition
Your pilot can be fitted with different helmets and suits, but they seem entirely cosmetic. (tech-gaming.com)
I have included 4 different helmet cover sheets for you to use as visual examples to show your students so that you don't have to spend time coloring these helmet templates yourself. (uniqueteachingresources.com)
You may use different helmets for other activities, but these do not provide adequate protection in case of a motorcycle accident. (massachusettsinjurylawyerblog.com)