Sacrifice nothing with 509's highest performance snowmobile helmet ever. The 509 Altitude 2.0 Pro Carbon Fiber 3K Hi-Flow Helmet boasts every advantage for the most demanding off-trail riders. 3K carbon composite construction makes it lighter, stronger, and sleeker than anything else in the lineup. For those who run at redline, the helmet maximizes airflow with open upper and rear vents plus a 40% larger chinbar intake. It also features the MIPS Brain Protection System for the highest levels of safety.

Weight: ECE helmet as low as 1050 grams

• Pro MIPS Brain Protection System for ultimate safety
• Hand lay-up carbon fiber composite construction
• XS to 4X sizes available in three shells for optimal fit and minimal weight
• Upper vents for optimal airflow
• Go-Pro® mounting capability, improved design
• Fidlock® chinstrap strap closure for easy in and out
• Perfect fit between helmet eyeport and 509 goggles
• Pro-Series Breathbox included
• 509 helmet bag included