This bobtail-style helmet is becoming extremely popular among athletes serious about cutting down their time and being comfortable. Why? The Bambino features a unique dual internal and external ventilation system, with channels to allow cool air into the helmet and areas to help warm air escape from the head in an aerodynamic fashion. Plus, the flexible ear area means that you won’t have to spend precious time trying to stuff your football-shaped noggin into your helmet during the transition to the bike portion of the race. Finally, it comes with a magnetic visor that’s a dream to change.