Rock climbers need a helmet to protect them from head injuries due to falls. The helmet should fit snugly and not impede vision.

The Black Diamond Vector and the Petzl Sirocco are two of the best rock climbing helmets on the market. They are both lightweight and have a comfortable fit. The Vector has a more aerodynamic design, while the Sirocco has better ventilation.These helmets are designed to protect your head from falls. They are also comfortable to wear and do not impede your vision.

In-Depth Comparison

Black Diamond Vector
The Black Diamond Vector is a lightweight and comfortable helmet. It has a sleek design and is available in several different colors. The Vector is also certified for both climbing and skiing. It has a low profile and does not impede your vision. The helmet has good ventilation and is comfortable to wear. The only downside to the Vector is that it is not as adjustable as some of the other helmets on the market.

Petzl Sirocco
The Petzl Sirocco is a lightweight and comfortable helmet. It is available in several different colors and is certified for both climbing and skiing. The Sirocco has good ventilation and is comfortable to wear. It is also adjustable to ensure a snug fit. The only downside to the Sirocco is that it is not as aerodynamic as the Vector.

Conclusion

Both the Black Diamond Vector and the Petzl Sirocco are great helmets for rock climbing. They are lightweight, comfortable, and have good ventilation. The Vector is more aerodynamic, while the Sirocco is more adjustable.