Skyline's rimless design strips away everything but the lens and the view, and that kind of minimal build usually loses something when it meets a helmet brim. The Mondo MIPS Helmet's Regulator Climate Control vents close that gap instead, keeping Skyline's open field of view fog-free through changing conditions. What Our Gearhead(R) Experts Are Saying:"Skyline's rimless frame looks like it would leave a gap, but seated under the Mondo, it doesn't. My vision stays clear from the first chair to the last run."