The Petzl Altios is part of a new breed, that of the hybrid helmets - the use of a combination of expanded foam liner and a mesh panel mean that it is both comfortable and lightweight. This innovative design has the affect of giving the helmet a near weightless feeling. In addition, the space created between the head and the liner allows for efficient ventilation to keep the head cool and dry.

The ALTIOS' hybrid suspension system, composed of a mesh panel and expanded polystyrene liner, makes this helmet extremely lightweight and comfortable to wear. Thanks to this innovative design, the helmet "levitates" above the head for a near-weightless feeling. The space between the head and the liner allows for effective ventilation with the Climate Control System. Durable ABS shell.

This helmet is very ergonomic, adapting to almost any head shape and offers two options for attaching a headlamp: a removable system-compatible mount, or clips.

FEATURES:

* Durable injection molded polycarbonate shell for protection and durability.

* Expanded polypropylene liner absorbs impacts without excess weight.

* Removable mesh panel cradles the head for comfort and optimum pressure distribution.

* Ergonomic shape that adapts well to varying head sizes.

* Two heradlamp attaching options; a removable mount for the ADAPT system, or hooks for others.

* Low-profile buckles located off to the side, not under the chin for less irritation.

* Soft webbing straps for increased comfort.

* Highly adjustable: chinstrap, nape height and headband, for an extremely comfortable and versatile fit.

* Head band folds into the helmet for compact transportation.