10 pins on each side

Standard three-hole Look mounting system

Full-length semi-autolock zipper can be flipped up and tugged open with one hand for easy venting

Profile: Proptech 3

Structure: Proptech 3

Electra Ace Bike Helmet Size:S 10 pins on each sideIf you're going to wear a helmet on your Electra, wear an Electra on your helmet. Ride smart. Look sharp. It doesn't matter if you're a casual rider or commited commuter. Stay safe and protect your head with an Electra helmet. Choose from solid colors or awesome graphics to fit your style. Product details Durable ABS hardshell and EPS foam liner for maximum comfort and protection Fit retention system with reflective bubble decal Authentic Electra