Mauna Kask Mistral

In collaboration with Mauna, Birdworx is excited to offer a KASK Mistral at a discounted price that includes a free MAUNA Love on the sides of the helmet.

Harness your pure energy, cut through the air. The unique design of the Mistral Aero helmet will speed you all the way to the finish line in maximum comfort and safety. The team of experts involved in development have delivered optimal aerodynamic characteristics, making the Mistral particularly suited to triathlon and track racing.

Finding your perfect fit

Discovering the ideal size for your KASK helmet is as easy as measuring the circumference of your head. Position a tape measure just above your ears. In the figure above, the dashed line shows the correct inclination.

HELMET SIZES: SMALL: M 55 - 58 21 5/8"-22 7/8" L 59 - 62 23 3/8"-24 1/2"

New Helmets: We do not keep helmets in stock. When you place an order for a new helmet we will place an order with KASK the same day. (Deliveries typically show up in 2-3 days).

Once we have your helmet we will skin your helmet and have it set to ship the next day. Please expect a 5-7 turnaround time.