Trek have kept the look on the Vapor 3 simple, meaning it doesn't look as snazzy as some of the helmets on test here. That said, don't judge a book by its cover as the Vapor has 19 well placed vents with deep channelling internally and, once adjusted, is really comfy to wear.
Talking of adjustment, the ZipTite 2 rear dial makes for an easy life but you must remember to push and twist to loosen it off. As for the twist and lock straps, these are a little more awkward than most of the flip systems but, once adjusted, are fine. As with most helmets, the Vapor comes with removable wicking pads that can be washed when they start to stink.