The Petzl Elios Helmet is an excellent combination of lightweight and durability. The polycarbonate shell and impact-absorbing form liner make this a great choice when you need a helmet that lasts but don't want to feel like you strapped a brick to your head. This well-ventilated helmet has clips for a headlamp and can be used for everything from sport to alpine climbing. Adjust the Elios to fit over a stocking hat with a single wheel in the back

2 sizes are differentiated by the color of the adjustment dial.  We found that either size fits most people. The larger size 2 covers about the same range as the Ecrin Roc and the size 1 tightens down to under 19" for even the smallest adventurers.  These are our preferred ropes course participant helmets.

Multipurpose helmet, the best compromise between durability and weight.

• Comfortable to wear:
  • light (less than 350 g),
  • ventilated with ten ventilation holes.
• Durable:
  • expanded polypropylene foam liner (for impact absorption),
  • injection molded polycarbonate shell for durability.
• Simple and effective adjustment:
  • 1 single adjustment point for the headband (at the nape),
  • chin strap position can slide forward or backward,
  • 2 sizes for good fit.
• 4 headlamp clips.

Certification: CE - UIAA

ELIOS SIZE CHART & ECRIN COMP
Helmet	Range in inches	Range in cent.
Elios 1	18.9 - 22	48 - 56
Elios 2	20.9 - 24	53 - 61
Ecrin Roc	20.9 - 25	53 - 63