What's the difference between XC and trail helmets within this category?

XC-oriented helmets prioritize minimal weight and maximum ventilation for racing, with slightly less rear extension and a trimmer profile. Trail-oriented helmets offer fuller coverage extending lower on the temples and nape, often with hybrid in-mold construction for durability and more robust visors. The distinction is a spectrum rather than a hard line—most modern helmets blend both philosophies. Choose based on your riding: XC racers benefit from lighter, cooler helmets; trail riders benefit from more coverage and durability for the rougher, more aggressive riding they do.