Completely redesigned from the ground up, the Black Diamond Half Dome is the evolution of our most popular climbing helmet. With an improved fit and weight savings of more than 40 grams over the original, the Half Dome is an all-purpose workhorse ideal for everything from trad cragging to alpine expeditions. We also added a custom-designed wheel adjuster for quick, secure and precise adjustments.

• Hybrid design with molded EPS foam, generous ventilation and highly adjustable suspension system
• Suspension's custom wheel adjuster allows for improved fine-tuning of fit
• Headlamp clips are the most secure headlamp attachments on the market
• Available in 2 sizes
• The most durable helmet Black Diamond makes

Weight : 290 g/10 oz (S/M) 
320 g/11 oz (M/L)
Size Range : 

Size 1 S/M = 48 - 57 cm (19 - 22.5 in) 
Size 2 M/L = 55 - 61.5 cm (22 - 24 in)