509 Altitude 2.0 Carbon Fiber 3K Hi-Flow Snow Helmet Size:XL It durable

It durable

TruFeel® internal texture for heightened feel and control of levers

Number of Riders: 2 Person

Legend goes on to say that by attaching a small bell onto your bike

509 Altitude 2.0 Carbon Fiber 3K Hi-Flow Snow Helmet Size:XL It durableEngineered with 40% larger chinbar intake and rear exhaust vents. All open vents, removed shutter for increased flow, plugs removed, more breathable for mountain riders. Combined with an ultralight ECE 3K Carbon layup this helmet is optimized for the most demanding off trail riders. FEATURES 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