The humble helmet plays a vital role for each rider in the professional peloton and there's simply never been as many to choose from as there are today.
In this video, we take a closer look at five popular helmets from heads of the pro peloton. Included is Swedish brand POC with its popular Octal lid, and Team Sky's helmet of choice - the Kask Protone.
So which one is your favourite? Let us know in the comments below.