Photo: Oliver Baker

Kask Protone


$232, Backcountry.com

The draw: Incredible adjustability

The Protone is an everyday road helmet that’s also great in the wind tunnel. A tale of two halves, the vents up front allow for airflow through the helmet to keep you cool. At the back, the solid shell optimizes aerodynamics by forcing air over the helmet rather than through it, particularly useful when you’re hammering with your head down. The most adjustable road helmet we’ve seen, it sports the most height adjustment of any helmet we tested along with micro-dial tension adjustment—and you can adjust the width of the two rear cradles that hold the helmet in place. The anti-allergy, eco-leather chinstrap may seem odd, but the soft feel is noticeably more comfy than nylon and is easy to wipe clean.