The Petzl Sirocco is an ultra-lightweight climbing and mountaineering helmet. The Monobloc construction minimizes weight while retaining excellent impact resistance thanks to the materials used. An innovative strap system also helps to save weight without sacrificing comfort or safety.

• Extremely light weight
• Monobloc shell and unique strap system for amazing weight savings
• Internal quilted foam pads are removable for cleaning
• Ample ventilation in slots around helmet
• Magnetic buckle allows chinstrap to be attached with one hand.
• Includes headlamp attachment hardware
• Size 1:
• Fits - 18.8-22in (48-56cm)
• Weighs - 5.1oz (145g)
• Size2:
• Fits - 20.8-21in (53-61cm)
• Weighs - 5.8oz (165g)