With the continuous improvement of national policies, the driving standards of motorcycle drivers and passengers have been controlled to some extent. Now many drivers and passengers choose to wear helmets, but different kinds of helmets have different characteristics. So, what are the characteristics of full helmets in the market? On the one hand, this helmet has a relatively large protection area. In the process of designing this helmet, all-round protection is realized, the head can be completely protected, and the top is provided with cushioning protective material, which can effectively play a protective role. Therefore, they also have a very good reputation and share in the market. On the other hand, although the full helmet has a good protective effect, it may not be particularly comfortable for drivers and passengers during wearing. This is because they completely protect the driver's head, but it may be relatively heavy. In a word, this helmet has good market share and performance evaluation, but it also has advantages and disadvantages. In the process of purchasing, we should make effective choices according to our actual needs, but the protection of helmets is the most important, so we must make careful choices. We should not blindly consider the appearance or wearing comfort alone, otherwise, the selected product may not be cost-effective.