Hard-Shell – Hard-Shell helmets are built to last and will look good no matter how many trips they make in and out of your gear bag. Hard-Shell helmets protect you from impact thanks to a lightweight EPS foam bonded to an injection-molded and durable ABS shell.

Full-Wrap Liner – A comfortable, washable, full-coverage, breathable liner design that wicks away moisture to prevent overheating and accommodates audio systems.

Active Matrix Venting™ – Active Matrix Venting allows you to regulate the airflow of the helmet vent system with the touch of your finger. Controlling large vents with minimal effort results in superior style and function that adjusts on the fly. It's climate control with the flip of a switch.

K2Dialed Fit System™ – An ergonomically inspired three-point adjustable interface maximizes fit and customization. Sizing your helmet with the twist of a dial gives you the ultimate convenience of on-the-fly adjustability.

Baseline Audio – The K2 Baseline Audio system seamlessly connects you with your cell phone or media player. The audio system comes pre-installed in Baseline Audio Earpads. The speaker housing creates a minimal, low-profile stowage so you won't notice the speakers unless music is playing. If you would rather ride without the speakers installed, they can be easily removed from the earpads. With a detachable cord and an all-new on-cord audio controller for initiating on-the-go pause-play and answer/hang-up functions, your media device is literally at your fingertips.

ASTM F2040, EN1077: 2007 Class B