I wear a HV vest and it does make you more noticeable, especially in rain. An all black or dark coloured bike with a dark coloured rider does blend into the background and they are not immediately noticeable and unless they are coming straight at you can be hard to pick out. We all spend the bucks on our bikes and the $ 50. or so for a HV vest is well worth the investment. Visibility is only part of the game when riding a motorcycle but it is part of the equation in trying to stay alive out there. Every little bit helps. As one of the previous pictures showed, there were 2 people wearing HV and you can immediately pick them out of the crowd.