Giro saga helmetthe saga drafts off the bold design language of giros premium synthe helmet and offers many of its best features including durable in mould construction and the roc loc 5 fit system with two way fit adjustment the slim design is very light and offers impressive ventilation features in mould polycarbonate shell with eps liner streamlined design roc loc 5 22 vents with internal channellingbuygiro helmetsfrom chain reaction cycles the worlds largest online bike store