Sound and noise

through breath-ability and the use of Nilit® Breeze yarn - Nilit® is proven to reduce body temperature

the Boa is still relatively light due to its I-Beam construction

Rust resistant

Petzl Vizir Eye Shield - Visor Clear Product Type_Descenders Sound and noisePetzl Visor. Vizir Protective eye shield for VERTEX helmets. The VIZIR eye shield ensures eye protection and integrates perfectly into VERTEX helmets. It installs easily with the two inserts on these helmets. Features: Mounting inserts for easy installation on VERTEX helmets Pivots quickly from work position to storage position on top of the helmet Scratch and fog resistant Specifications: Weight: 65g Certification(s): CE EN 166, 1B, ANSI Z87. 1 2010