Motorcycle Helmet A balance between sturdiness and comfort

The material of a helmet directly affects its protective performance and wearing comfort. When selecting, a balance needs to be found between durability and comfort. ​
Common helmet shell materials include ABS plastic, PC alloy, carbon fiber, etc. ABS plastic is a commonly used material for mid to low end helmets, with a relatively affordable price and certain strength and toughness, which can effectively resist the general impact force during daily cycling. But its disadvantage is that it is relatively heavy, and wearing it for a long time may bring some burden to the neck. The performance of PC alloy material is better than that of ABS plastic. It has higher strength and toughness, better anti-aging performance, and more refined appearance. The texture is fine when touching, and the surface gloss is even under strong light. Carbon fiber is a representative material for high-end helmets, with high strength and light weight, providing excellent protection for riders while reducing head burden. But its high price has deterred many consumers with limited budgets. For example, a regular ABS plastic helmet may cost tens to hundreds of yuan, while a carbon fiber helmet of the same quality may cost thousands of yuan. ​
The buffer layer, as a key part of the helmet to absorb impact energy, is commonly made of materials such as EPS (expanded polystyrene) and EPP (expanded polypropylene). EPS has a wide range of applications, effectively absorbing and dispersing impact forces during collisions, with uniform texture and even elasticity when pressed. However, its resistance to multiple impacts is average. EPP has better cushioning performance, better resilience and durability than EPS, and is environmentally friendly and non-toxic. Pressing the EPP buffer layer can clearly feel the elasticity and rapid rebound, with a tight and firm feel. But its high cost leads to a generally high price for helmets using EPP buffer layer