The Altios' hybrid suspension system, makes this helmet extremely lightweight and comfortable to wear.

Thanks to the 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.

Lightweight and comfortable fit, thanks to a hybrid suspension system combining an expanded polystyrene liner for shock absorption with a comfortable mesh inner liner. Durable ABS constructed shell provides protection.
Climate Control System provides ventilation between the inner shell and the top of the head (can be closed in cold weather with the 6 plugs stored in the inner shell).
Removable ADAPT clip, for easy attachment of any Petzl headlamp equipped with the ADAPT system (TIKKA/ZIPKA family).
Removable and washable headband foam and mesh.
Easy-to-use, molded adjustment wheel quickly dials in the headband size, even while the helmet is being worn.

Size 1
adjustable from 48cm-56cm
Weight: 315g

Size 2
adjustable from 56-61cm
Weight: 345g