Dhb aeron proven performance you can rely onfive years since we launched our award winning aeron pro bib shorts 2016 brings an all encompassing evolution of the aeron collection now expanded to an extensive range to keep you comfortable whatever the conditions high performance materials supreme fit and a keen attention to detail your new wardrobe staple lightweight aero comfortable the dhb aeron road helmet weighs in at 265g medium and has 24 vents which are arranged to optimize ae