This open helmet is exactly that. Nothing more. Not that classic (bicycle) helmets protect the head, honestly, I don't know why they exist! Perhaps only to complete a cyclist's appearance. Just like an accessory. Very lightweight, it provides no safety, needed purely to avoid fines from the traffic police. It's not comfortable as I read someone say. The back part is annoying and bothersome. Cheap construction, when I held it in my hands I couldn't believe that XIAOMI made such a poorly quality helmet. Its price could be much cheaper due to the "quality" of construction. It's what we call: "Chinese 6th quality" costing €18.00. I pity those who will pay more for it. It's priced in the market up to €65.00!! Xiaomi prices it at €39.90. I bought it due to a low budget for this month until I get the one I've found which is a real helmet and worth around €100. A helmet should be sturdy, reinforced, and relatively heavy (from 500g to a kilogram) to protect you from a blow to the head. However, this particular helmet is a toy and indeed only for preschool children! Maybe for Halloween as a complement to some costume. I won't even discuss it... Unacceptable.