Squad MAG's magnetic lens system swaps in seconds when the light shifts, and the Mondo MIPS Helmet's Regulator Climate Control vents hold their seal through that swap instead of losing it. The two work through the same changing conditions together, from a stormy morning to a bluebird afternoon. What Our Gearhead(R) Experts Are Saying:"I swap Squad MAG's lens mid-run without breaking the seal against the Mondo, and the fog never has a chance to build back in."