A system in Giro helmets that allows them to fit different head sizes. The brand has combined a suitable shell construction with an advanced fit system to make the helmets versatile. They comfortably adapt to the shape of the cyclist's head from the first fitting. Plus - they look good.

The Roc Loc Sport Fit System technology is an innovative fit system for sports helmets that allows for easy adjustment. Thanks to a one-handed mechanism, the user can adjust the size of the helmet within a range of as much as 7 centimetres. Importantly, the system gives clear feedback - both in the form of clicks and perceptible changes, informing the user of the adjustment in progress.

In-mold is a manufacturing method in which the outer shell of the helmet is permanently bonded to a layer of inner protective foam during moulding. This makes the helmet lighter, more durable and better absorbs impacts. The process also provides an aesthetically pleasing finish and increased structural durability.