Enhanced ventilation, a revamped retention system, and additional temporal protection are just a few of the features packed into Lazer's new top-shelf Z1 Helmet. No stranger to outfitting the best cyclists in the world with head protection, the Belgian manufacturer builds from the proven Helium and Genesis designs to deliver its lightest and best-fitting helmet to date. First glance of the Z1 reveals a deeper shell structure along the temporal zone than that of the Helium, in what Lazer calls its T-Pro design. Standing for "temporal protection," T-Pro adds material around the temples, which then cuts away at the frontal zone to keep vision unobstructed. Constructing this area, along with the rest of the lid, is Lazer's proven RBS (Rigidity Brace System). Lazer likens it to a car's roll cage, in that during a crash the cracked EPS stays together to provide some additional protection. In terms of ventilation, the Z1 has 31 strategically placed vents, allowing massive doses of cooling air to flow in the front of the helmet and over the head, before exiting out the back. Not surprisingly, this ventilation design contributes to the Z1's claimed 220 gram weight (size medium) which is a 40 gram savings over the Helium in the same size. Lazer also spent time rethinking its retention system, which now adds even more adjustability for an ultra-precise fit. Called the ARS (Advanced Rollsys System) it features a top-mounted dial connected to a band that tightens symmetrically, evenly distributing pressure across the head. Furthering this is its "head basket" cradle at the back of the head, featuring five up and down positions for an optimal hold. The Lazer Z1 Helmet is available in sizes Small to Large and in the colors Blue Silver, Flash Orange/blue, Matte Black, Vanilla Grey, White/red, and White/silver.