Giro Trinity Cycling Helmet
Sometimes the simplest designs are also the smartest. The Trinity™ is an easy fit for riders who want a classic cycling helmet that doesn't compromise comfort or performance. It includes top-level features like In-Mold construction to keep the weight low, and the easy one-handed adjustments of our acclaimed Acu Dial™ system for a quick, sure fit no matter where or how far you ride.Universal fit sizes: 21.25" - 24"/54-61 cm.